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/libraries/glm/glm.pc.in

@@ -0,0 +1,7 @@
+prefix=@out@
+includedir=@out@/include
+
+Name: GLM
+Description: OpenGL Mathematics
+Version: @version@
+Cflags: -I${includedir}