Commit fe4a6d2d ("wifi: mac80211: implement support for yet
another mesh A-MSDU format") expands amsdu_mesh_control list to
multi-line list. However, the expansion triggers Sphinx warning:

Documentation/driver-api/80211/mac80211-advanced:214: ./net/mac80211/sta_info.h:628: WARNING: Unexpected indentation.

Use bullet list instead to fix the warning.

Link: https://lore.kernel.org/linux-next/20230323141548.659479ef@canb.auug.org.au/
Fixes: fe4a6d2d ("wifi: mac80211: implement support for yet another mesh A-MSDU format")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>