Battery: Solid green when battery is full and introduce 4th stage

* Solid green when battery is full
* Introduce 4th step in colors which includes 69-99%
	 0-14: red
	15-69: orange
	70-99: yellow
          100: solid green

Change-Id: I24af9bb012744ea15d411c2aa42afe9388f2a97e
Signed-off-by: bmc08gt <bmc08gt.teamb00sted@gmail.com>