pcmcia: sa1100*: remove redundant bvd1/bvd2 setting

bvd1 and bvd2 both default to 1 in the generic soc_common code, so
having a driver repeat this is redundant.  Remove it.

Acked-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>