Google contribution item #12 - subitem #2, base

[VZW-Skylo] apply Idle Mode Scanning for Terrestrial Network

Telephony Framework - base
- Add, Modify APIs, Callback

Bug: 374301122
Flag: EXEMPT bugfix
Change-Id: I73bcd046ba990c938f26b6c9e13d6c659cafac68
Signed-off-by: jaeshin <js074.lee@samsung.corp-partner.google.com>