qcacld-3.0: Add configuration items for 6 GHZ

6 GHZ has introduced new set of frequency based APIs. Also there is
conditional usage of 6 GHZ band. Add configuration items for these.

Change-Id: I22703989ec7e6711af640f1f9d0afded46026b8a
CRs-Fixed: 2513098
diff --git a/configs/default_defconfig b/configs/default_defconfig
index e8e25e7..a0ae2d3 100644
--- a/configs/default_defconfig
+++ b/configs/default_defconfig
@@ -766,7 +766,6 @@
 CONFIG_160MHZ_SUPPORT := y
 CONFIG_MCL := y
 CONFIG_REG_CLIENT := y
-CONFIG_LEGACY_CHAN_ENUM := y
 CONFIG_WLAN_PMO_ENABLE := y
 CONFIG_CONVERGED_P2P_ENABLE := y
 CONFIG_WLAN_POLICY_MGR_ENABLE := y
@@ -905,4 +904,11 @@
 CONFIG_WLAN_FEATURE_DP_BUS_BANDWIDTH := y
 endif
 
+ifeq ($(CONFIG_CNSS_QCA6490), y)
+
+#Enable 6 GHz Band
+CONFIG_BAND_6GHZ := y
+
+endif
+
 CONFIG_SAP_DHCP_FW_IND := y