RIL: mark mInstanceId as protected

To use in RIL subclasses

Change-Id: I4ab1ea79079e3b03670b1e985f7a574df1f16658
telephony: MSim: propagate roaming and data settings to SIM

Update SIM-specific setting when global setting is set by API
rather than the MSim configuration dialog. (e.g. QuickSettings)

Change-Id: I1ea4aad02055be6bcc9132d6d91a65826b6765b2
SamsungQualcommRIL: allow mQANElements to be device specific

The new RIL blobs for i9305 require that mQANElements = 6.
This patch simply introduces a new system property that can be used
to adjust the value of mQANElements if required.

Change-Id: I8a69bb6462552bf2374d963d82882315e8c77cef