EMIF, ERRATA, android-battery, libs_pwr

EMIF and ERRATA changes are to add support for memory and silicon hardware changes on the .A2 SOMs. This is backwards compatible with the other SOM revisions, but software without these changes will not work on .A2 SOMs.

android-battery was ported from http://omapzoom.org/?p=kernel/omap.git;a=tree;h=refs/heads/p-ti-android-3.8.y;hb=p-ti-android-3.8.y

libs_pwr is an i2c driver based on the LIBs Power Board Protocol (currently REV 1.3).