qcacmn: Changes to wext interface for external acs

Private ioctls for external acs operation like
set icm active, get channel load info, clear chan load info,
get nominal noise floor were transported and
handled by spectral module. We seperate this ioctls
from spectral by adding new IWPRIVs(get_icm_active,
set_icm_active, get_nominal_nf, clear_chan_info)and
moving their handlers out of spectral.

CRs-Fixed: 2126313
Change-Id: I8c6b56b85d566f5bc7f6217f6fbc99fa23171cdd

dp/inc/cdp_txrx_stats_struct.h

@@ -498,6 +498,9 @@ enum _ol_ath_param_t {
 	OL_ATH_PARAM_EXT_NSS_CAPABLE = 354,
 	OL_ATH_PARAM_MGMT_PDEV_STATS_TIMER = 355,
 	OL_ATH_PARAM_TXACKTIMEOUT = 356,
+	OL_ATH_PARAM_ICM_ACTIVE = 357,
+	OL_ATH_PARAM_NOMINAL_NOISEFLOOR = 358,
+	OL_ATH_PARAM_CHAN_INFO = 359,
 };
 
 /* Enumeration of PDEV Configuration parameter */