This patch adds some new pin multiplexing options
for McBSP and McSPI from Arun KS. Also add two more
GPIOs from David Brownell.

Also mark omap24xx_cfg_reg() static.
Signed-off-by: Arun KS <arunks@mistralsolutions.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>