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/tools/misc/hddtemp/execinfo.patch

@@ -0,0 +1,21 @@
+--- hddtemp-0.3-beta15/configure.in~	2005-10-17 19:14:19 +0000
++++ hddtemp-0.3-beta15/configure.in	2006-12-11 18:23:22 +0000
+@@ -18,6 +18,7 @@
+ AC_HEADER_STDC
+ AC_CHECK_HEADERS(fcntl.h)
+ AC_CHECK_HEADERS(netinet/in.h)
++AC_CHECK_HEADERS(execinfo.h)
+ AC_CHECK_TYPE(in_addr_t, ,[AC_DEFINE_UNQUOTED([in_addr_t], [uint32_t], [Define to 'uint32_t' if <netinet/in.h> does not define.])], [#include <netinet/in.h>])
+ 
+ # Checks for typedefs, structures, and compiler characteristics.
+--- hddtemp-0.3-beta15/src/backtrace.c-orig	2006-12-11 18:20:41 +0000
++++ hddtemp-0.3-beta15/src/backtrace.c	2006-12-11 18:23:28 +0000
+@@ -18,7 +18,7 @@
+ 
+ #include <features.h>
+ 
+-#if defined(__i386__) && defined(__GLIBC__)
++#ifdef HAS_EXECINFO_H
+ 
+ #include <execinfo.h>
+