Integrate Emergency Number everywhere

Patch Set 1-2:
1) trigger the update from LocaleTracker if country ISO is changed
2) cache emergency number list from database based on country ISO
3) merge emergency number from radio and database
4) merge two emergency numbers if they are the same one
5) load EccInfo from database
6) create another Handler message to update DB emergency number list

Patch set 5:
7) remove the passed parameters for notifier
8) getEmergencyNumberList returns null if radio indication not support
from the HAL
9) comment the steps of merge logic for radio and database number list

Patch set 6:
10) Merge Same Numbers In the Emergency Number List to prevent duplicate.
11) Refactor mergeRadioAndDatabaseList()

Patch set 7:
12) Refactor mergeRadioAndDatabaseList()
13) remove Phone in notifier

Patch set 9:
14) Add mnc into Emergency Number
15) Add Radio Indication

Bug: 112657134
Test: Treehugger; Manual

Change-Id: I54678f0dd65cfb785d7fced19c1e408e3184cb87