Banana Pi M2 Berry has an on-board USB Hub that provides 4 USB Type-A
ports, and it's connected to the USB1 port of the SoC.

Enable it.
Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>