Make the default value of in-call noise suppression configurable.

PS2: Fix the value type of def_noise_suppression

Change-Id: I1dc0b6085807c49370a06243689b70ea4b91732b
Merge remote-tracking branch 'PA/kitkat' into legacy-staging

Conflicts:
	packages/SettingsProvider/src/com/android/providers/settings/DatabaseHelper.java