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/gh-ost/default.nix

@@ -0,0 +1,23 @@
+{ lib, buildGoPackage, fetchFromGitHub }:
+
+buildGoPackage rec {
+  pname = "gh-ost";
+  version = "1.1.4";
+
+  src = fetchFromGitHub {
+    owner = "github";
+    repo = "gh-ost";
+    rev = "v${version}";
+    sha256 = "sha256-HtLtwqPijOE19iJ2AUNAnyc2ujLPeH43HSg3QRBbKEg=";
+  };
+
+  goPackagePath = "github.com/github/gh-ost";
+
+  ldflags = [ "-s" "-w" "-X main.AppVersion=${version}" "-X main.BuildDescribe=${src.rev}" ];
+
+  meta = with lib; {
+    description = "Triggerless online schema migration solution for MySQL";
+    homepage = "https://github.com/github/gh-ost";
+    license = licenses.mit;
+  };
+}