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/libraries/libchop/size_t.patch

@@ -0,0 +1,11 @@
+--- a/src/chop.c
++++ b/src/chop.c
+@@ -539,7 +539,7 @@ extern const chop_class_t chop_gdbm_bloc
+   chop_qdbm_block_iterator_class;
+ 
+ const struct chop_class_entry *
+-chop_lookup_class_entry (const char *str, unsigned int len);
++chop_lookup_class_entry (const char *str, size_t len);
+ 
+ /* Include the gperf-generated perfect hash table.  */
+ #include "class-lookup.c"