Change expected response code for the aodh check for Pike+

Starts from Pike http response code is 200

Change-Id: I24294c4a708266173fdc3dcd966f285eaedd8081
Related-PROD: PROD-26918 (PROD:26918)
(cherry picked from commit 80db80207a83bfb6ae8ad91757aec66f8c4149e8)
1 file changed