Telephony: Get SIM card capacity count of SMS.

Add one API:
- getSmsCapacityOnIcc: get the capacity of stored SMS on ICC card.

Change-Id: I63c1431cf02db2dbdee3553afc2448b4ec2cdfa3
CRs-Fixed: 645022
Telephony:Copying MO/MT SMS of SUB2 to its SIM memory is fail in C+G.

Fix: In C+G configuration, While copying MO/MT SMS of SUB2 to its
SIM memory, in process of getting current Phonetype is returned with
default sub's(i.e,SUB1's)Phonetype which is CDMA type.
To fix this, get current Phonetype based on subscription id.

Change-Id: I394eadfb091c4901a553cf66192e8ee965b69eda
CRs-Fixed: 689036