Fix Fatal Exception in UserCapabilityExchangeImpl

UceImpl received the SimInfoContent changed callback and called the method ImsMmTelManager#isVtSettingEnabled.
The IllegalArgumentException was thrown in the method isVtSettingEnabled and didn't be catched.
It could be the subscription with this operation is not active.

Bug: 154055069
Test: atest UserCapabilityExchangeImpl
Change-Id: If4d7296702a4732e163db15647a5d57dda471474
1 file changed