Fixed time zone detection not working when SIM is absent

Now we use cell info to determine the current country
when SIM is absent, we should feed this info into NITZ state
machine so it can adjust the time zone correctly.

Test: Telephony sanity tests
Bug: 118284801

Merged-In: I3b19d7077b21bc1cc06197558559a6297d62a8d1
Change-Id: I3b19d7077b21bc1cc06197558559a6297d62a8d1
(cherry picked from commit 614d14a7)