A missing ceph peer alarm was raised on an AIO-SX node.
Since an AIO-SX node only has one node, such an alarm makes
no sense on this kind of setup and it should not be raised.
Note: also added some extra empty lines for improved code
readability.
Change-Id: Ie6debccad4667e840859eba3d5e369e8932e782a
Closes-bug: 1846287
Signed-off-by: Stefan Dinescu <stefan.dinescu@windriver.com>