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/servers/foundationdb/python.nix

@@ -0,0 +1,24 @@
+{ buildPythonPackage, lib, foundationdb }:
+
+buildPythonPackage {
+  pname = "foundationdb";
+  version = foundationdb.version;
+
+  src = foundationdb.pythonsrc;
+  unpackCmd = "tar xf $curSrc";
+
+  patchPhase = ''
+    substituteInPlace ./fdb/impl.py \
+      --replace libfdb_c.so "${foundationdb.lib}/lib/libfdb_c.so"
+  '';
+
+  doCheck = false;
+
+  meta = with lib; {
+    description = "Python bindings for FoundationDB";
+    homepage    = "https://www.foundationdb.org";
+    license     = with licenses; [ asl20 ];
+    maintainers = with maintainers; [ thoughtpolice ];
+  };
+}
+