pandora: Add basic twl4030 keyboard support

Signed-off-by: Urja Rannikko <urjaman@gmail.com>
OMAP3 LCD: pandora: workaround dcache+lcd scrolling

This was found to work via experimentation. Without this
there was mess onscreen after the screen scrolled.

Signed-off-by: Urja Rannikko <urjaman@gmail.com>
pandora: Add menu entry to enter console

Signed-off-by: Urja Rannikko <urjaman@gmail.com>