cLock: Update app icon

Update from blue to white so we match the rest of kitkat settings

Change-Id: I2b7dd8fbefe8edcf9f9fd62437eed8d70c04d101
Merge "cLock: Update app icon" into cm-11.0
Merge branch 'CyanogenMod/cm-11.0'

Conflicts:
	res/drawable-hdpi/ic_launcher.png
	res/drawable-mdpi/ic_launcher.png
	res/drawable-xhdpi/ic_launcher.png