Fixed that locale was not updated after airplane mode off

Fixed a case that when network MCC/MNC is unavailable after
airplane mode off, locale tracker did not pull cell tower info
to determine the current country.

Now telephony gets the cell info from the modem when the device
is out of airplane mode. Also it periodically gets cell info from
the modem when network MCC/MNC is unavailable.

Test: Manual + unit tests
Bug: 80261412
Change-Id: I71810284a2d0b1e767d97e8e014f2a8497a77784