Restrict access to the resolution PendingIntent created by

EuiccController to EuiccResolutionUiDispatcherActivity

Bug: 156097472
Bug: 155094269
Bug: 158014355
Fix: 156097472
Fix: 158014355
Test: Local, with jpd@'s PoC app
Change-Id: I76a9eb55d8321ea695594693580be468522e4de8
Merged-In: I76a9eb55d8321ea695594693580be468522e4de8