SamsungQualcommRIL: support exynos RIL radio states.

* required for m3
* enable it with v3 feature:  exynos4RadioState
* remove m3 class
Change-Id: Id34320c59a316e2b6747bd3a48077b863ab772d6
Merge branch 'cm-10.1' of https://github.com/CyanogenMod/android_frameworks_opt_telephony into cm-10.1