MSIM : Enhance UI when no SIM / single SIM is present

As part of this change, the following UI enhancements are done:
1)"SIM card info not available.Menu cannot be accessed" will be
displayed to user on accessing the multiSIM menu when
no SIM card is inserted
2)If a single SIM is inserted, only Configure
subscriptions menu inside Multi SIM setting will be accessible
to the user.The remaining options will be grayed out
3)If multiple SIM cards are inserted, all options inside
Multi SIM setting will be accessible

In case of airplane mode, based on the availability of
SIM card info the UI specified above is displayed

Change-Id: Id41f3b3260ed72dbf43413d49da9b9e5019aef69
CRs-Fixed: 554727

Conflicts:
	res/values/strings.xml