Telephony: Fix the failure of copying SMS to SIM card for sub2.

While copying SMS of sub2 to its SIM memory, in process of getting
current Phonetype will return default sub's(i.e,sub1's)Phonetype.
But we want to get sub2's Phonetype here.

To fix this, get current Phonetype based on subscription id.

Change-Id: Id554430378ae0837d5eba2d2029ead147b8c3e83
CRs-Fixed: 727110