SystemUI: Update circle battery UI to be in line with CM

Paranoid Android circle battery icon was too thin and had the wrong shade of white. 

Fixes: AOSPA-179, community request 

Fixed color to match other battery icons

PS2: Fixed spacing

Change-Id: I084bbacefb37fdf64368f80baa95d79e2bd8e2bc
Merge "SystemUI: Update circle battery UI to be in line with CM" into kitkat