PhoneStatusBar: fix alt signal

Change-Id: I41ea0456e21910de7820547375df5c08e2d5819f
Signed-off-by: Dirk Rettschlag <dirk.rettschlag@gmail.com>

Conflicts:
	packages/SystemUI/res/layout/signal_cluster_view_alt.xml
	packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java