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/multipath-tools/json-c-0.14.patch

@@ -0,0 +1,21 @@
+diff --git a/libdmmp/libdmmp_private.h b/libdmmp/libdmmp_private.h
+index ac85b63f..b1a6ddea 100644
+--- a/libdmmp/libdmmp_private.h
++++ b/libdmmp/libdmmp_private.h
+@@ -30,6 +30,7 @@
+ #include <stdint.h>
+ #include <string.h>
+ #include <assert.h>
++#include <stdbool.h>
+ #include <json.h>
+ 
+ #include "libdmmp/libdmmp.h"
+@@ -82,7 +83,7 @@ static out_type func_name(struct dmmp_context *ctx, const char *var_name) { \
+ do { \
+ 	json_type j_type = json_type_null; \
+ 	json_object *j_obj_tmp = NULL; \
+-	if (json_object_object_get_ex(j_obj, key, &j_obj_tmp) != TRUE) { \
++	if (json_object_object_get_ex(j_obj, key, &j_obj_tmp) != true) { \
+ 		_error(ctx, "Invalid JSON output from multipathd IPC: " \
+ 		       "key '%s' not found", key); \
+ 		rc = DMMP_ERR_IPC_ERROR; \