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/as-tree/cargo-lock.patch

@@ -0,0 +1,13 @@
+diff --git a/Cargo.lock b/Cargo.lock
+index 991ecd8..9e94574 100644
+--- a/Cargo.lock
++++ b/Cargo.lock
+@@ -11,7 +11,7 @@ dependencies = [
+ 
+ [[package]]
+ name = "as-tree"
+-version = "0.11.1"
++version = "0.12.0"
+ dependencies = [
+  "ansi_term",
+  "atty",