Adds uboot-envtools support for ramips Asus RX-AX53U now that partition
can be correctly read.
Signed-off-by: Felix Baumann <felix.bau@gmx.de>
[ improve commit title and description ]
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
(cherry picked from commit 75451681d03e609ac8a3d1cd7469eefa53e18ca4)