Update Dialer icons to Lollipop ones

Change-Id: I0f5f9161abdf73d473346af9327445eddfdb07c6

Conflicts:
	res/mipmap-hdpi/ic_launcher_phone.png
	res/mipmap-mdpi/ic_launcher_phone.png
	res/mipmap-xhdpi/ic_launcher_phone.png
	res/mipmap-xxhdpi/ic_launcher_phone.png
	res/mipmap-xxxhdpi/ic_launcher_phone.png