Fixed that SIM name not updated issue

The SIM name priority method did not give
the right priority. Added a unit test to
ensure user input always has the highest
priority.

Bug: 145925846
Test: Manual + unit tests

Merged-In: I100404997459731da93887237173f390af034139
Change-Id: I100404997459731da93887237173f390af034139
(cherry picked from commit c07d64ca)