The current state of the kernel 5.4 support is in the openwrt-21.02
branch. No need to keep a not default used kernel in this branch.
Signed-off-by: Aleksander Jan Bajkowski <olek2@wp.pl>
Tested-by: Stefan Lippers-Hollmann <s.l-h@gmx.de> [VRX268/ bthub5]
1c68494f67