Telephony: implement noise suppression for phone calls (2/2)

Forward port from cm-10.2

Conflicts:
	res/values/slim_strings.xml
	src/com/android/phone/CallFeaturesSetting.java

Change-Id: Ie72449f952f99b410fbb5bc4a8e6cbc833e6176f
White emergency dialer

Change-Id: I3c4e54d1e6a5f008bac1d32314ca53ec33ed2277