[MEP] eSim profile is not enabled

eSim profile is not getting enabled when tried from the Settings->SIMs->Downloaded Sim. Modified logic to directly rely on PortIdxToPhoneId mapping in UiccSlot, this is to fix the getSimSlotMapping return wrong value in DSDS mode when psim card is absent.

Bug: 213251124
Test: Manual, atest TeleServiceTests
Change-Id: Ib85bedac840fe46b8f295e57811af2399abd5092
1 file changed