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/os-specific/linux/broadcom-sta/i686-build-failure.patch

@@ -0,0 +1,18 @@
+https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit?id=fe47ae6e1a5005b2e82f7eab57b5c3820453293a
+https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit?id=4ea1636b04dbd66536fa387bae2eea463efc705b
+
+diff -ru a/src/shared/linux_osl.c b/src/shared/linux_osl.c
+--- a/src/shared/linux_osl.c	2015-09-19 01:47:15.000000000 +0300
++++ b/src/shared/linux_osl.c	2015-11-21 15:20:30.585902518 +0200
+@@ -932,7 +932,11 @@
+ 	uint cycles;
+ 
+ #if defined(__i386__)
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 3, 0)
++	cycles = (u32)rdtsc();
++#else
+ 	rdtscl(cycles);
++#endif
+ #else
+ 	cycles = 0;
+ #endif