Settings: Only show multi-sim card configuration for owners

Telephony only allows the owner to manage sim card Settings,
currently we are crashing when changing any multisim setting
from eithr a guest or non-owner. This patch addresses the
issue by not adding the tile unless the current user is the
owner.

Change-Id: Ifaeec6c22cdf7318530ef1e6ed6e1ec851317263
Ticket: CYNGNOS-879