wpa_supplicant: Support throughput estimation for EHT rates

wpa_supplicant: Support throughput estimation for EHT rates

Add support to consider EHT rates while calculating the estimated
throughput for scan results.

- The estimated EHT throughput uses the HE 0.8 usec GI rates from the
  relevant EHT-MCS tables from IEEE P802.11be/D2.0, 36.5.
- The minimum SNR values for EHT rates (4096-QAM) are derived by adding
  the existing minimum SNR values of 1024-QAM rates from HE tables and
  the difference between the values of minimum sensitivity levels of
  1024-QAM rates and 4096-QAM rates defined in Table 36-67 (Receiver
  minimum input level sensitivity) in IEEE P802.11be/D2.0.

Signed-off-by: Ayala Beker <ayala.beker@intel.com>
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>