Merge branch 'patch-avs-update-syslog-trap-diagnostics' into 'master'

Set SNMPTRAP/SYSLOG diagnostics set.

See merge request !6868

(cherry picked from commit 00eb1e2e)

7a4e1918 Set SNMPTRAP/SYSLOG diagnostics set.
3f5f39e0 Reset diagnostic when change platform.
d41f66aa Fix diagnostic reason.