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

* Flash green when battery is full(>=97%)
* Introduce 4th step in colors which includes 69-89%
	 0-14: red
	15-59: orange
	60-89: yellow
        90-96: solid green
          97+: flash green

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