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/motif/Remove-unsupported-weak-refs-on-darwin.patch

@@ -0,0 +1,12 @@
+--- a/lib/Xm/XmP.h
++++ b/lib/Xm/XmP.h
+@@ -1437,7 +1437,7 @@ extern void _XmDestroyParentCallback(
+ 
+ #endif /* NO_XM_1_2_BC */
+ 
+-#if __GNUC__
++#if __GNUC__ && ! __APPLE__
+ #  define XM_DEPRECATED  __attribute__((__deprecated__))
+ #  define XM_ALIAS(sym)  __attribute__((__weak__,alias(#sym)))
+ #else
+