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/desktops/xfce/core/xfce4-dev-tools/setup-hook.sh

@@ -0,0 +1,12 @@
+xdtEnvHook() {
+    addToSearchPath ACLOCAL_PATH $1/share/aclocal
+}
+
+envHooks+=(xdtEnvHook)
+
+xdtAutogenPhase() {
+    mkdir -p m4
+    NOCONFIGURE=1 xdt-autogen
+}
+
+preConfigurePhases+=(xdtAutogenPhase)