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>

maintainers/scripts/check-maintainer-github-handles.sh

@@ -0,0 +1,66 @@
+#!/usr/bin/env nix-shell
+#!nix-shell -i bash -p jq parallel
+
+# Example how to work with the `lib.maintainers` attrset.
+# Can be used to check whether all user handles are still valid.
+
+set -o errexit -o noclobber -o nounset -o pipefail
+shopt -s failglob inherit_errexit
+
+function checkCommits {
+    local ret status tmp user
+    user="$1"
+    tmp=$(mktemp)
+    curl --silent -w "%{http_code}" \
+         "https://github.com/NixOS/nixpkgs/commits?author=$user" \
+         > "$tmp"
+    # the last line of tmp contains the http status
+    status=$(tail -n1 "$tmp")
+    ret=
+    case $status in
+        200) if <"$tmp" grep -i "no commits found" > /dev/null; then
+                 ret=1
+             else
+                 ret=0
+             fi
+             ;;
+        # because of github’s hard request limits, this can take some time
+        429) sleep 2
+             printf "."
+             checkCommits "$user"
+             ret=$?
+             ;;
+        *)   printf "BAD STATUS: $(tail -n1 "$tmp") for %s\n" "$user"; ret=1
+             ret=1
+             ;;
+    esac
+    rm "$tmp"
+    return $ret
+}
+export -f checkCommits
+
+function checkUser {
+    local user="$1"
+    local status=
+    status="$(curl --silent --head "https://github.com/${user}" | grep Status)"
+    # checks whether a user handle can be found on github
+    if [[ "$status" =~ 404 ]]; then
+        printf "%s\t\t\t\t%s\n" "$status" "$user"
+    # checks whether the user handle has any nixpkgs commits
+    elif checkCommits "$user"; then
+        printf "OK!\t\t\t\t%s\n" "$user"
+    else
+        printf "No Commits!\t\t\t%s\n" "$user"
+    fi
+}
+export -f checkUser
+
+# output the maintainers set as json
+# and filter out the github username of each maintainer (if it exists)
+# then check some at the same time
+nix-instantiate -A lib.maintainers --eval --strict --json \
+    | jq -r '.[]|.github|select(.)' \
+    | parallel -j5 checkUser
+
+# To check some arbitrary users:
+# parallel -j100 checkUser ::: "eelco" "profpatsch" "Profpatsch" "a"