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/misc/binutils/always-search-rpath.patch

@@ -0,0 +1,14 @@
+diff --git a/ld/genscripts.sh b/ld/genscripts.sh
+index b6940d376d..0feb1adfd0 100755
+--- a/ld/genscripts.sh
++++ b/ld/genscripts.sh
+@@ -125,6 +125,9 @@ if test "x$NATIVE" = "xyes" ; then
+   USE_LIBPATH=yes
+ fi
+ 
++# TODO: why is this needed?
++USE_LIBPATH=yes
++
+ # Set the library search path, for libraries named by -lfoo.
+ # If LIB_PATH is defined (e.g., by Makefile) and non-empty, it is used.
+ # Otherwise, the default is set here.