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/data/icons/comixcursors/makefile-shell-var.patch

@@ -0,0 +1,11 @@
+--- a/Makefile
++++ b/Makefile
+@@ -22,8 +22,6 @@
+ 
+ # Makefile for ComixCursors project.
+ 
+-SHELL = /bin/bash
+-
+ CURSORSNAME = ComixCursors
+ PACKAGENAME ?= ${CURSORSNAME}
+ SUMMARY ?= The original Comix Cursors