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/build-managers/bmake/bootstrap-fix.patch

@@ -0,0 +1,10 @@
+--- bmake/make-bootstrap.sh.in.orig     2019-02-19 10:55:21.733606117 -0800
++++ bmake/make-bootstrap.sh.in  2019-02-19 10:56:02.150771541 -0800
+@@ -4,6 +4,7 @@
+ 
+ srcdir=@srcdir@
+ 
++prefix="@prefix@"
+ DEFAULT_SYS_PATH="@default_sys_path@"
+ 
+ case "@use_meta@" in