nl80211: Fix typo pmsr->pmsr

This was mis-spelled in the policy, fix that.

Signed-off-by: Sosthène Guédon <sosthene@guedon.gdn>
Link: https://lore.kernel.org/r/YLkT27RG0DaWLUot@arch.localdomain


Signed-off-by: Johannes Berg <johannes.berg@intel.com>