Fix sim pin on DSDS

Fixes the issue where only one SIM's PIN is checked when unlocking.
This undoes behavior changes introduced in aosp/769050

Test: manually verify with single and dual SIM that SIM PIN functions
correctly with different lockscreen settings
Bug: 135496265
Change-Id: I8db4565c4e5d5bcfb166b5962e878531a84dbafb