Add the new scan request and response to log string.

Test: Telephony sanity tests
Bug: 30954762

Cherry-picked cleanly from:
https://android-review.git.corp.google.com/#/c/421047/

Merged-in: I78cf7d8d14e5c68f890d2ad21f35be783be49cf5
Change-Id: I78cf7d8d14e5c68f890d2ad21f35be783be49cf5
(cherry picked from commit a88c366b)