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/bazel/bazel_3/no-arc.patch

@@ -0,0 +1,34 @@
+--- a/tools/osx/xcode_locator.m	2020-12-10 13:27:29.000000000 +0100
++++ b/tools/osx/xcode_locator.m	2021-02-01 09:09:32.159557051 +0100
+@@ -21,10 +21,6 @@
+ // 6,6.4,6.4.1 = 6.4.1
+ // 6.3,6.3.0 = 6.3
+ 
+-#if !defined(__has_feature) || !__has_feature(objc_arc)
+-#error "This file requires ARC support."
+-#endif
+-
+ #import <CoreServices/CoreServices.h>
+ #import <Foundation/Foundation.h>
+ 
+--- a/tools/osx/xcode_configure.bzl	1980-01-01 01:00:00.000000000 +0100
++++ b/tools/osx/xcode_configure.bzl	2021-02-01 09:36:57.773418444 +0100
+@@ -123,7 +123,6 @@
+         "macosx",
+         "clang",
+         "-mmacosx-version-min=10.9",
+-        "-fobjc-arc",
+         "-framework",
+         "CoreServices",
+         "-framework",
+--- a/tools/osx/BUILD	2021-02-01 11:01:02.191659553 +0100
++++ b/tools/osx/BUILD	2021-02-01 11:04:29.735071019 +0100
+@@ -27,7 +27,7 @@
+ ])
+ 
+ DARWIN_XCODE_LOCATOR_COMPILE_COMMAND = """
+-  /usr/bin/xcrun --sdk macosx clang -mmacosx-version-min=10.9 -fobjc-arc -framework CoreServices \
++  /usr/bin/xcrun --sdk macosx clang -mmacosx-version-min=10.9 -framework CoreServices \
+       -framework Foundation -o $@ $<
+ """
+