board: turris_mox: Add fixed regulator support to defconfig

Without this USB3 won't work in U-Boot.

Signed-off-by: Marek Behun <marek.behun@nic.cz>
Reviewed-by: Stefan Roese <sr@denx.de>
Signed-off-by: Stefan Roese <sr@denx.de>
1 file changed