Phone: Fix LTEToggle for t0ltecdma

Some devices need to be toggled into
LTE/CDMA/EVDO

Could fix other device too.

add ro.config.qc_lte_network_modes=true to prop to use.

Patchset 2: add integer.toggleLTE_lte_cdma_nt_mode check back in.

Change-Id: I53d1a6b37335b6a7e2d7f0ed8195592e6f73d69f
Phone: Settings: do not override network mode on read

Users may use the network tile to put the network in modes not supported
by this checkbox (e.g. 3G). A side effect of this is that the tile will
display the wrong mode (2G3G instead of 3G) after entering the
Mobile network settings page because the checkbox writes 2G3G into the
system settings without actually changing it at the RIL.

Change-Id: I4658468caadb4782520856ef70feee7040065523
Add support for proprietary libaudio voice quality filter

This single commit add support for this feature, which is also
called "Crystal Talk"

Add support for an overlay config key like "motoVoiceQualityConfig"
present in motorola libaudio.

Change-Id: I8752cd07340e6caf53ba8e2f19d24a361de22bee

Conflicts:
	res/values/cm_arrays.xml
	res/values/cm_strings.xml
	res/values/config.xml
	src/com/android/phone/CallFeaturesSetting.java
	src/com/android/phone/PhoneUtils.java