Some rework of the rk30_battery_adc driver. Aligned with 3.0.36 kernel.
rk30_battery and rk29_battery code cleanup.
rk30_battery_adc.c code cleanup and added corrrect Odys Genio battery table.
board-odys-genio.c: cleanup and battery mod.
Merge commit '2b5159cbeaeed12fb07967bcd4d00c5adc3e00ec'
Activate charger display.