iwlwifi: Document 4965 rate_n_flags bits

Document 4965 rate_n_flags bits

Signed-off-by: Ben Cahill <ben.m.cahill@intel.com>
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2 files changed