[3/3] Subtle vibration when ongoing call is connected

Other 2 patches are in frameworks/base & packages/apps/InCallUI repos

Change-Id: I1db907b471143e7bc5ddaf7a0b32b0b20cb34991

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

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