qcacmn: Get extscan vendor params out of extscan feature flag

Currently extscan vendor config params are defined under
EXTSCAN feature flag but are getting used for the vendor command
get valid channel list which is independent of EXTSCAN feature.

To resolve above issue move extscan vendor params out of
extscan feature flag.

Change-Id: I049fbc8cdc97f51aa1e390a488074572d5276299
CRs-fixed: 2524535

os_if/linux/qca_vendor.h

@@ -1369,7 +1369,6 @@ enum qca_wlan_vendor_attr {
 		QCA_WLAN_VENDOR_ATTR_MAX = QCA_WLAN_VENDOR_ATTR_AFTER_LAST - 1
 };
 
-#ifdef FEATURE_WLAN_EXTSCAN
 enum qca_wlan_vendor_attr_extscan_config_params {
 	QCA_WLAN_VENDOR_ATTR_EXTSCAN_SUBCMD_CONFIG_PARAM_INVALID = 0,
 
@@ -1784,8 +1783,6 @@ enum qca_wlan_vendor_attr_extscan_results {
 	QCA_WLAN_VENDOR_ATTR_EXTSCAN_RESULTS_MAX =
 	QCA_WLAN_VENDOR_ATTR_EXTSCAN_RESULTS_AFTER_LAST - 1,
 };
-#endif
-
 
 /**
  * enum qca_vendor_interop_issues_ap_type - interop issues type