Don't set settings titles for single SIM devices.

The seemingly most straightforward way to accomplish this is pass
a context into SubscriptionInfoHelper, and check TelephonyManager
for the device SIM capability before setting any title.

Leave the Context parameter in getIntent() because of how
CallFeaturesSetting may be creating an intent for a different
activity (handling the up arrow).

Bug: 18692675
Change-Id: I689e0db066a16ba06bda6e0fd68b6d25e9c698b9
8 files changed