In-Call UI from blue to white

we changed the default dialpad from blue to white
but forgot this in call dialpad,
make it white ui to be consistent

Change-Id: Ie715340d69adb1514e5f1d5bb159b8c42494015a
Signed-off-by: anerikg <anerikgames@gmail.com>

Conflicts:
	res/values/colors.xml