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/portmidi/missing-header.diff

@@ -0,0 +1,12 @@
+diff --git a/porttime/ptmacosx_mach.c b/porttime/ptmacosx_mach.c
+index 10c3554..712a974 100755
+--- a/porttime/ptmacosx_mach.c
++++ b/porttime/ptmacosx_mach.c
+@@ -12,6 +12,7 @@
+ 
+ #include "porttime.h"
+ #include "sys/time.h"
++#include "sys/qos.h"
+ #include "pthread.h"
+ 
+ #ifndef NSEC_PER_MSEC