ceph: shush device discovery log messages
ceph: shush device discovery log messages

fixes: #3483

Signed-off-by: Noah Watkins <86ecd7d1c53cf33a85014f7cab78876cb4491020@gmail.com>

rook/nfs,rook/rook,rook/rook,rook/nfs,rook/rook,rook/nfs,rook/rook,rook/rook