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/dotnet/dotnetbuildhelpers/create-pkg-config-for-dll.sh

@@ -0,0 +1,23 @@
+#!/usr/bin/env bash
+
+targetDir="$1"
+dllFullPath="$2"
+
+dllVersion="$(monodis --assembly "$dllFullPath" | grep ^Version: | cut -f 2 -d : | xargs)"
+[ -z "$dllVersion" ] && echo "Defaulting dllVersion to 0.0.0" && dllVersion="0.0.0"
+dllFileName="$(basename $dllFullPath)"
+dllRootName="$(basename -s .dll $dllFileName)"
+targetPcFile="$targetDir"/"$dllRootName".pc
+
+mkdir -p "$targetDir"
+
+cat > $targetPcFile << EOF
+Libraries=$dllFullPath
+
+Name: $dllRootName
+Description: $dllRootName
+Version: $dllVersion
+Libs: -r:$dllFileName
+EOF
+
+echo "Created $targetPcFile"