SamsungQualcommRIL: Add Operators class

* for replacing operator numbers with operator name
* prevent race condition when the two response  colided

Change-Id: Ia5add56b0c79847a70487223006bb33e2730a165

Conflicts:
	src/java/com/android/internal/telephony/SamsungQualcommRIL.java
Merge "SamsungQualcommRIL: Add Operators class" into jb4.3