Beagle Convert the board version detection to use the OMAP3 GPIO interface.

There is no new functionality in the change.

This change is a conversion from the using raw register access to using
the OMAP3 GPIO API described in doc/README.omap3.

Signed-off-by: Tom Rix <Tom.Rix@windriver.com>
Acked-by: Dirk Behme <dirk.behme@googlemail.com>
1 file changed