Google Contrigution item #12 - subitem #2, opt

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

Telephony Framework - opt
- Add, Modify APIs, Callback

Bug: 374301122
Flag: EXEMPT bugfix
Change-Id: Id9ec1d654c95cab6dc2e4d54bb58746e48486a25
Signed-off-by: jaeshin <js074.lee@samsung.corp-partner.google.com>