Skip error message due to missing feature (sonic-net#14731)

ansible/roles/test/files/tools/loganalyzer/loganalyzer_common_ignore.txt

@@ -286,3 +286,8 @@ r, ".* INFO healthd.*Key 'TEMPERATURE_INFO|ASIC' field 'temperature' unavailable
 # Ignore rsyslog librelp error if rsyslogd on host or container is down or going down
 r, ".* ERR .*#rsyslogd: librelp error 10008 forwarding to server .* - suspending.*"
 r, ".* ERR rsyslogd: imrelp.*error 'error when receiving data, session broken', object .* - input may not work as intended.*"
+
+# Errors for config reload/reboot on mellanox platform
+# SAI implement missing for the https://github.com/sonic-net/sonic-buildimage/pull/18912 caused the err msg pop up, need to ignore the err msgs before it SAI implement is done.
+r, ".* ERR swss#orchagent:.*doAppSwitchTableTask.*Unsupported Attribute ecmp_hash_offset.*"
+r, ".* ERR swss#orchagent:.*doAppSwitchTableTask.*Unsupported Attribute lag_hash_offset.*"