Disable a phone number log for user build

A phone number is privacy data. Therefore, it should be prevented
from logging in user build.

Co-Author: youhei.x.miyoshi <youhei.x.miyoshi@sonymobile.com>
Co-Author: Yong Shi <yong.xa.shi@sonymobile.com>

Test: manual - checked log
Bug: 34582911
Change-Id: Icf47ea8394244823579a147e8469ff2fd5d839cd