N7000: Battery capacity fix

i9100 has battery capacity of 2100, n7000 has 2500.
This is a remnant of the ancient CM n7000 bringup when
i9100 device tree was used as a template.

Change-Id: Id81f9372f50f0fef75b0b027d3646262e722d092
N7000: Clean up system.prop typo

Replacing i9100 system.prop reference with n7000.

Change-Id: Ia208be4209b4ae879174cee45a3f347d68fe47e5