wifi: iwlwifi: mvm: document remaining mvm data

Many iwl_mvm_vif members are not documented, add that.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20240703125541.371664e5e8cd.I593ebee1ab984554b6d269dc2dddc67fbf3bb537@changeid


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