Show devices connected to the WiFi hotspot(2/2)

Change-Id: Icf51db5ae0204ed2bf153a5223aec986d3b496c4

Conflicts:
	res/xml/tether_prefs.xml
	src/com/android/settings/Settings.java
	src/com/android/settings/TetherSettings.java
fix

Change-Id: Id861a95aad7b4962f4c74233092ec41cfbb0db30