arm: rate-limit logging from unimplemented PHYSDEVOP and HVMOP.

arm: rate-limit logging from unimplemented PHYSDEVOP and HVMOP.

These are guest accessible and should therefore be rate-limited.
Moreover, include them only in debug builds.

This is CVE-2015-7813 / XSA-146.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
master commit: 1c0e59ff15764e7b0c59282365974f5b8924ce83
master date: 2015-10-29 13:33:38 +0100

(cherry picked from commit b18d995ca341d07a38fec04aa137e9ef85ee4dd0)

Patch-Name: CVE-2015-7813.diff

Gbp-Pq: Name CVE-2015-7813.diff