mac80211: allow drivers to use peer measurement API

There's nothing much for mac80211 to do, so only pass through
the requests with minimal checks and tracing. The driver must
call cfg80211's results APIs.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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v4: first version - just takes the same number as the cfg80211 patch
v5: no changes
v6: no changes
4 files changed