arm: imx: select MFD_MC13XXX for all boards that need it
This was only done for some of the boards and while it is ok to build
those boards without regulator support it may potentially yield non-working
barebox binaries. This is clearly not what the user wanted.
Also select the appropriate bus support needed for the MC13xxx.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>