iwlwifi: declare support for triggered SU/MU beamforming feedback

The NIC supports this, so set the relevant bits in the HE PHY
capabilities.

Signed-off-by: Naftali Goldstein <naftali.goldstein@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20210210142629.24212c1aac90.I82f6c1bdb9fe351ce46e8cc8ec6da221908dec45@changeid


Signed-off-by: Luca Coelho <luciano.coelho@intel.com>