prevent multiwindow if halo enabled
please multiwindow stay out if HALO there !! , but we will leave you in activity

Change-Id: Ie9ca36b6c7647ff9c6f038986b107f3623d8726c
Signed-off-by: anerik <anerikgames@gmail.com>

Conflicts:
	packages/SystemUI/src/com/android/systemui/recent/RecentsPanelView.java