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/rust/cargo-deny/zstd-pkg-config.patch

@@ -0,0 +1,29 @@
+--- a/Cargo.lock
++++ b/Cargo.lock
+@@ -242,6 +242,7 @@ dependencies = [
+  "toml_edit",
+  "twox-hash",
+  "url",
++ "zstd",
+ ]
+ 
+ [[package]]
+@@ -1904,4 +1905,5 @@ checksum = "2141bed8922b427761470e6bbfeff255da94fa20b0bbeab0d9297fcaf71e3aa7"
+ dependencies = [
+  "cc",
+  "libc",
++ "pkg-config",
+ ]
+diff --git a/Cargo.toml b/Cargo.toml
+index 8f24673..b59c350 100644
+--- a/Cargo.toml
++++ b/Cargo.toml
+@@ -92,6 +92,8 @@ twox-hash = { version = "1.5", default-features = false }
+ # Url parsing/manipulation
+ url = "2.1"
+ 
++zstd = { version = "*", features = ["pkg-config"] }
++
+ [dev-dependencies]
+ # Avoid loading license check many times
+ lazy_static = "1.4.0"