Do not set allowed_key_mgmts on BRCM devices

Do not add additional key managements in allowed_key_mgmts
field in BRCM solutions. This is to avoid sending the AKM
combinations which are not properly handled in driver.

Bug: 257347048
Test: Manual - connect to WPA2 AP and WPA3 AP.
Change-Id: Ia95fc14b5e3041cb077fde4713f36c1a9f81fbcf
1 file changed