Add in a fix for 160Mhz dfs on 5.10 and higher.
Add support for 5.13 and 5.15 kernels.
Add of_get_mac_address support for 5.15 driver.
Signed-off-by: Andrew Robbins <andrew@robbinsa.me>
(cherry picked from commit 1d2bc94f786434e89bc87003b2a2202e92ad84e7)