At present, 6 GHz allow check is not applicable to P2P GO interface
type in API hdd_get_ap_6 GHz_capable, thus start GO on 6 GHz failed.
Fix by call policy_mgr_is_6ghz_conc_mode_supported API to check
interface type support 6 GHz or not.
Change-Id: I96bda834e65d0e1fe7301ef695234df9088f50a6
CRs-Fixed: 3253893