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/gnome/extensions/extensionOverridesPatches/shell-volume-mixer_at_derhofbauer.at.patch

@@ -0,0 +1,32 @@
+diff --git a/lib/utils/paHelper.js b/lib/utils/paHelper.js
+index be28d21..a410a63 100755
+--- a/lib/utils/paHelper.js
++++ b/lib/utils/paHelper.js
+@@ -57,13 +57,7 @@ async function execHelper(type, index = undefined) {
+         return null;
+     }
+
+-    const python = await findPython();
+-
+-    if (!python) {
+-        return null;
+-    }
+-
+-    const args = ['/usr/bin/env', python, paUtilPath, type];
++    const args = ['@python3@/bin/python', paUtilPath, type];
+
+     if (!isNaN(index)) {
+         args.push(index);
+diff --git a/pautils/lib/libpulse.py b/pautils/lib/libpulse.py
+index a32c272..8225f2f 100755
+--- a/pautils/lib/libpulse.py
++++ b/pautils/lib/libpulse.py
+@@ -16,7 +16,7 @@
+ from ctypes import *
+
+ try:
+-    lib = CDLL('libpulse.so.0')
++    lib = CDLL('@pulseaudio@/lib/libpulse.so.0')
+ except:
+     lib = CDLL('libpulse.so')
+