librpc: Don't mask lower bytes on program version 0x00020002

It's used by a number of HTC devices (Aria, Slide, and Legend), and
needs to be accessible in order to use loc_api

Change-Id: I830e90a6de0e7c0e4413a8dd9009f3a4c20796fc

Conflicts:

	librpc-qcom/clnt.c