qcacld-3.0: Add 6GHz support for VENDOR_SUBCMD_SET_SAP_CONFIG

As a part of 6GHz support, add support to parse channel frequency
attribute: QCA_WLAN_VENDOR_ATTR_SAP_CONFIG_FREQUENCY (in MHz)
in QCA_NL80211_VENDOR_SUBCMD_SET_SAP_CONFIG command data.

Change-Id: I8e9956ef0db1a511f4252d6fb1f03201df54c3c1
CRs-Fixed: 2534010
1 file changed