Add AppOps check for sendTextWithPriority

 Add application operation check for sendTextWithPriority API.

Change-Id: I802142f28a5ee11d59a35e9265ec968005777bae
CRs-Fixed: 571674
Telephony: Update TD-SCDMA Network Type String

- Updating the string used to identify TD-SCDMA network type
  to be consistent with the ServiceState string.

Change-Id: I5aee8728ee80dc199f37414aba9019523082862c
CRs-Fixed: 564062
Telephony: Ignore the timingAdvance field in SignalStrength

Ignore the timingAdvance field since the frameworks is not
utilizing this field.

Change-Id: I8644f20aa1918514da88db5a8bc7394263d61e30
Fix data disconnect issue on G sub for C+G DSDS

On a DSDS Cdma+Gsm device, when data is registered on both Cdma and Gsm
subscriptions and DDS is on Gsm sub, if data deregister happens on Cdma
sub, data disconnect is getting propagated to connectivity service
irrespective of DDS, hence data is getting disconnected on Gsm sub.

Add code changes to block data disconnect getting propagated to
connectivity service when the subscription is not DDS.

Change-Id: I329d6a20ace65cad494e36dd9ec5a6470db2fbd7
CRs-Fixed: 544292