Settings: Deactivate SIM card can be done from UI.

When deactivate SIM card from UI, the boolean mCurrentState will be
set to false. Then it will deactivate SIM card accorging to the
value of mCurrentState. But the value of mCurrentState can be
changed by mStateChanegReceiver and others.

Replace the boolean mCurrentState by a new boolean mRequest. Then
deactivate SIM card can be done from UI according to mRequest.

CRs-Fixed: 818197
Change-Id: Iab95381c30ea87c6bbda24a1d7d4046d29e56695