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/networking/srelay/arm.patch

@@ -0,0 +1,12 @@
+diff -ru srelay-0.4.8b4.orig/configure srelay-0.4.8b4/configure
+--- srelay-0.4.8b4.orig/configure	2010-12-21 01:11:14.000000000 +1100
++++ srelay-0.4.8b4/configure	2016-06-22 09:03:42.250000345 +1000
+@@ -1875,7 +1875,7 @@
+ 	;;
+   linux*)
+ 	case "$host_cpu" in
+-	  i*86|mips*|powerpc*|sparc*|x86_64*)
++	  i*86|mips*|powerpc*|sparc*|x86_64*|arm*)
+ 	    OS=LINUX
+ 	    cat >>confdefs.h <<\_ACEOF
+ #define LINUX 1

pkgs/tools/networking/srelay/default.nix

@@ -0,0 +1,22 @@
+{ lib, stdenv, fetchurl }:
+
+stdenv.mkDerivation rec {
+  pname = "srelay";
+  version = "0.4.8";
+
+  src = fetchurl {
+    url = "mirror://sourceforge/project/socks-relay/socks-relay/srelay-${version}/srelay-${version}.tar.gz";
+    sha256 = "1sn6005aqyfvrlkm5445cyyaj6h6wfyskfncfmds55x34hfyxpvl";
+  };
+
+  patches = [ ./arm.patch ];
+
+  installPhase = "install -D srelay $out/bin/srelay";
+
+  meta = {
+    description = "A SOCKS proxy and relay";
+    homepage = "http://socks-relay.sourceforge.net/";
+    platforms = lib.platforms.unix;
+    license = lib.licenses.bsd3;
+  };
+}