create amdgpu-clocks package

pkgs/amdgpu-clocks/default.nix

@@ -0,0 +1,27 @@
+{ stdenv
+, lib
+, fetchFromGitHub
+, bash
+, subversion
+, makeWrapper
+}:
+  stdenv.mkDerivation {
+    pname = "amdgpu-clocks";
+    version = "973139a";
+    src = fetchFromGitHub {
+      # https://github.com/sibradzic/amdgpu-clocks
+      owner = "sibradzic";
+      repo = "amdgpu-clocks";
+      rev = "973139a5933bd315aa99332b642305ef5ef49a32";
+      sha256 = "sha256-mZV4ECNG9X6SDIWl6P0nHrxa4kGU1h/hFdMcswbEYrk=";
+    };
+    buildInputs = [ bash subversion ];
+    nativeBuildInputs = [ makeWrapper ];
+    installPhase = ''
+      mkdir -p $out/bin
+      cp amdgpu-clocks $out/bin/amdgpu-clocks
+      wrapProgram $out/bin/amdgpu-clocks \
+        --prefix PATH : ${lib.makeBinPath [ bash subversion ]}
+    '';
+  }
+