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/development/tools/build-managers/scons/setup-hook.sh

@@ -0,0 +1,84 @@
+sconsBuildPhase() {
+    runHook preBuild
+
+    if [ -n "$prefix" ]; then
+        mkdir -p "$prefix"
+    fi
+
+    if [ -z "${dontAddPrefix:-}" ] && [ -n "$prefix" ]; then
+        buildFlags="${prefixKey:-prefix=}$prefix $buildFlags"
+    fi
+
+    local flagsArray=(
+      ${enableParallelBuilding:+-j${NIX_BUILD_CORES}}
+      $sconsFlags ${sconsFlagsArray[@]}
+      $buildFlags ${buildFlagsArray[@]}
+    )
+
+    echoCmd 'build flags' "${flagsArray[@]}"
+    scons "${flagsArray[@]}"
+
+    runHook postBuild
+}
+
+sconsInstallPhase() {
+    runHook preInstall
+
+    if [ -n "$prefix" ]; then
+        mkdir -p "$prefix"
+    fi
+
+    if [ -z "${dontAddPrefix:-}" ] && [ -n "$prefix" ]; then
+        installFlags="${prefixKey:-prefix=}$prefix $installFlags"
+    fi
+
+    local flagsArray=(
+        $sconsFlags ${sconsFlagsArray[@]}
+        $installFlags ${installFlagsArray[@]}
+        ${installTargets:-install}
+    )
+
+    echoCmd 'install flags' "${flagsArray[@]}"
+    scons "${flagsArray[@]}"
+
+    runHook postInstall
+}
+
+sconsCheckPhase() {
+    runHook preCheck
+
+    if [ -z "${checkTarget:-}" ]; then
+        if scons -n check >/dev/null 2>&1; then
+            checkTarget=check
+        elif scons -n test >/dev/null 2>&1; then
+            checkTarget=test
+        fi
+    fi
+
+    if [ -z "${checkTarget:-}" ]; then
+        echo "no check/test target found, doing nothing"
+    else
+        local flagsArray=(
+            ${enableParallelChecking:+-j${NIX_BUILD_CORES}}
+            $sconsFlags ${sconsFlagsArray[@]}
+            ${checkFlagsArray[@]}
+        )
+
+        echoCmd 'check flags' "${flagsArray[@]}"
+        scons "${flagsArray[@]}"
+    fi
+
+    runHook postCheck
+}
+
+if [ -z "${buildPhase-}" ]; then
+    buildPhase=sconsBuildPhase
+fi
+
+if [ -z "${dontUseSconsInstall-}" -a -z "${installPhase-}" ]; then
+    installPhase=sconsInstallPhase
+fi
+
+if [ -z "${checkPhase-}" ]; then
+    checkPhase=sconsCheckPhase
+fi