BeagleBone fixes & cleanup

[Jan Luebbe]

Hi,

I've tried the recent changes in next on both BeagleBones.

These are actual fixes:
[PATCH 1/4] am33xx_generic: convert from switch to if/else
[PATCH 3/4] arm: omap: am33xx_generic: fix DDR setup for DDR2

These are more 'nice to have':
[PATCH 2/4] arm: mmu: be more verbose if ttb setup fails
[PATCH 4/4] beaglebone: use most recent timings for white variant

Regards,
Jan