fw_opt_telephony: Fix RIL for all Samsung devices

By SferaDev and jakew02

Add Samsung RIL files from CM

Fix dependencies and errors at RIL.java

Create Operators.java

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: Ie5894e4cf639b57b0e44bf63d6abb414448e9da0