[Settings] Avoid from main UI thread blocking on accessing eSIM

1. Add timeout on background thread when accessing eSIM
2. Print log for debugging in the future.

Bug: 177843016
Change-Id: I64225af6ce87c98119c7a93c0944ad08d1390137
Test: local
(cherry picked from commit bda8c222673b840527376b52cf7da561f66e537d)
1 file changed