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/snore/default.nix

@@ -0,0 +1,31 @@
+{ lib, stdenv, fetchFromGitHub, fetchpatch }:
+
+stdenv.mkDerivation rec {
+  version = "0.2";
+  pname = "snore";
+
+  src = fetchFromGitHub {
+    owner = "clamiax";
+    repo = pname;
+    rev = version;
+    sha256 = "sha256-EOwbRqtQEuGZ+aeCBNVfLUq4m/bFWJTvMDM6a+y74qc=";
+  };
+
+  patches = [
+    # Fix POSIX_C_SOURCE macro. Remove with the next release.
+    (fetchpatch {
+      url = "https://github.com/clamiax/snore/commit/284e5aa56e775803d24879954136401a106aa063.patch";
+      sha256 = "sha256-len8E8h9CXC25WB2lmnLLJ0PR903tgllDh9K2RqzQk0=";
+    })
+  ];
+
+  makeFlags = [ "PREFIX=${placeholder "out"}" ];
+
+  meta = with lib; {
+    description = "sleep with feedback";
+    homepage = "https://github.com/clamiax/snore";
+    license = licenses.mit;
+    maintainers = [ maintainers.marsam ];
+    platforms = platforms.unix;
+  };
+}