Fix bug which displays "conf-factory.." string in dialer app.

+ Set ph. no. URI to null if it contains "conf-factory" substring in
telephony no. so that telecomm can handle it and avoid displaying it in
dialer.

Bug: 29441521
Change-Id: I1e84788c8c3c1c51e1336624592e03a80634bfa3
1 file changed