telephony: added OppoRIL

Also filter operator list for duplicates

PS2:
whitespaces

Change-Id: I783dece8fe800f414c5a8dfc7c149171176c2bb1
Move SemcQualcomm7x30RIL to device common tree

This has been moved to the device tree now, making it easier to maintain

Change-Id: I2f58e30f44e02465c9944d31154a2112251faa92
Merge branch 'android-4.4' of https://github.com/omnirom/android_frameworks_opt_telephony into HEAD