Support flagging enum failure and flaky connection in device mode,
flagging enum failure and missing data lines in host mode.
No warning would be flagged until 5 secs after the data session
starts to give ample time for the connection to stabilize, a timer
is added to support it.
Bug: 296119135
Test: manually trigger the warnings
Change-Id: I25f08657e328913946add192b5ecb9ee50c3a1a8
(cherry picked from commit 42020dc4585442bd7ca88f183ba29a18834af197)
350dc9f41a