uboot: (firmwareOdroidC2/C4) don't invoke patch tool, use patches = [] instead

https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948
this can do it nicely.

Signed-off-by: Anton Arapov <anton@deadbeef.mx>

pkgs/build-support/setup-hooks/patch-shebangs.sh

@@ -0,0 +1,119 @@
+# This setup hook causes the fixup phase to rewrite all script
+# interpreter file names (`#!  /path') to paths found in $PATH.  E.g.,
+# /bin/sh will be rewritten to /nix/store/<hash>-some-bash/bin/sh.
+# /usr/bin/env gets special treatment so that ".../bin/env python" is
+# rewritten to /nix/store/<hash>/bin/python.  Interpreters that are
+# already in the store are left untouched.
+# A script file must be marked as executable, otherwise it will not be
+# considered.
+
+fixupOutputHooks+=(patchShebangsAuto)
+
+# Run patch shebangs on a directory or file.
+# Can take multiple paths as arguments.
+# patchShebangs [--build | --host] PATH...
+
+# Flags:
+# --build : Lookup commands available at build-time
+# --host  : Lookup commands available at runtime
+
+# Example use cases,
+# $ patchShebangs --host /nix/store/...-hello-1.0/bin
+# $ patchShebangs --build configure
+
+patchShebangs() {
+    local pathName
+
+    if [[ "$1" == "--host" ]]; then
+        pathName=HOST_PATH
+        shift
+    elif [[ "$1" == "--build" ]]; then
+        pathName=PATH
+        shift
+    fi
+
+    echo "patching script interpreter paths in $@"
+    local f
+    local oldPath
+    local newPath
+    local arg0
+    local args
+    local oldInterpreterLine
+    local newInterpreterLine
+
+    if [[ $# -eq 0 ]]; then
+        echo "No arguments supplied to patchShebangs" >&2
+        return 0
+    fi
+
+    local f
+    while IFS= read -r -d $'\0' f; do
+        isScript "$f" || continue
+
+        read -r oldInterpreterLine < "$f"
+        read -r oldPath arg0 args <<< "${oldInterpreterLine:2}"
+
+        if [[ -z "$pathName" ]]; then
+            if [[ -n $strictDeps && $f == "$NIX_STORE"* ]]; then
+                pathName=HOST_PATH
+            else
+                pathName=PATH
+            fi
+        fi
+
+        if [[ "$oldPath" == *"/bin/env" ]]; then
+            # Check for unsupported 'env' functionality:
+            # - options: something starting with a '-'
+            # - environment variables: foo=bar
+            if [[ $arg0 == "-"* || $arg0 == *"="* ]]; then
+                echo "$f: unsupported interpreter directive \"$oldInterpreterLine\" (set dontPatchShebangs=1 and handle shebang patching yourself)" >&2
+                exit 1
+            fi
+
+            newPath="$(PATH="${!pathName}" command -v "$arg0" || true)"
+        else
+            if [[ -z $oldPath ]]; then
+                # If no interpreter is specified linux will use /bin/sh. Set
+                # oldpath="/bin/sh" so that we get /nix/store/.../sh.
+                oldPath="/bin/sh"
+            fi
+
+            newPath="$(PATH="${!pathName}" command -v "$(basename "$oldPath")" || true)"
+
+            args="$arg0 $args"
+        fi
+
+        # Strip trailing whitespace introduced when no arguments are present
+        newInterpreterLine="$newPath $args"
+        newInterpreterLine=${newInterpreterLine%${newInterpreterLine##*[![:space:]]}}
+
+        if [[ -n "$oldPath" && "${oldPath:0:${#NIX_STORE}}" != "$NIX_STORE" ]]; then
+            if [[ -n "$newPath" && "$newPath" != "$oldPath" ]]; then
+                echo "$f: interpreter directive changed from \"$oldInterpreterLine\" to \"$newInterpreterLine\""
+                # escape the escape chars so that sed doesn't interpret them
+                escapedInterpreterLine=${newInterpreterLine//\\/\\\\}
+
+                # Preserve times, see: https://github.com/NixOS/nixpkgs/pull/33281
+                timestamp=$(stat --printf "%y" "$f")
+                sed -i -e "1 s|.*|#\!$escapedInterpreterLine|" "$f"
+                touch --date "$timestamp" "$f"
+            fi
+        fi
+    done < <(find "$@" -type f -perm -0100 -print0)
+
+    stopNest
+}
+
+patchShebangsAuto () {
+    if [[ -z "${dontPatchShebangs-}" && -e "$prefix" ]]; then
+
+        # Dev output will end up being run on the build platform. An
+        # example case of this is sdl2-config. Otherwise, we can just
+        # use the runtime path (--host).
+        if [[ "$output" != out && "$output" = "$outputDev" ]]; then
+            patchShebangs --build "$prefix"
+        else
+            patchShebangs --host "$prefix"
+        fi
+    fi
+}