Revert "telephony: Use reflection to create command interface (RIL class)"

This reverts commit 0fc84b4f5191360f4f7787af3cdf0d8c03ec8d3e.
RIL: Make RIL subclassable

Change-Id: I9144ef279ca9c8cb9e657a28342f0f4cb3e7debd

Conflicts:
	src/java/com/android/internal/telephony/RIL.java

Conflicts:
	src/java/com/android/internal/telephony/RIL.java