Replace Silicon Labs patch with upstream version as they got merged in
kernel 6.3.
Signed-off-by: Mieczyslaw Nalewaj <namiltd@yahoo.com>
[ rework commit title and description, use better patch ]
Link: https://github.com/openwrt/openwrt/pull/15300
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
