RIL: Add compatibility with qcom's DSDS

Devices with radio libraries built against a DSDS-enabled qualcomm
BSP (anything in the last 4 or 5 months, apparently) have a slight
incompatibility in the RIL protocol: it expects the first 4 bytes
of the datastream to be the slot's identification (even if the
device isn't dual-SIM). Absence of those 4 bytes will make the
connection hang.

Change-Id: I1b28dfc9a7a3f09e1461506de8d556513cee41ed
telephony: update Sony RIL

* add support for newer qcom ril with DSDS

Change-Id: I1d725f7a6253e6665841b2298d6f9c95feebc475
Merge "telephony: update Sony RIL" into jellybean
Merge remote-tracking branch 'cyanogen/jellybean' into jellybean