qcacmn: Get Spectral bin scaling params

Extended service ready event has a tlv
containing the spectral bin scaling parameters.
Populate the spectral capabilities using this info.

CRs-Fixed: 2379652
Change-Id: I0b4648302e7170b5965cf1aec68638e70cd36e73

wmi/inc/wmi_unified_dbr_api.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013-2018 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2013-2019 The Linux Foundation. All rights reserved.
  *
  * Permission to use, copy, modify, and/or distribute this software for
  * any purpose with or without fee is hereby granted, provided that the
@@ -38,6 +38,22 @@ typedef struct wmi_unified *wmi_unified_t;
 QDF_STATUS wmi_unified_dbr_ring_cfg(void *wmi_hdl,
 				struct direct_buf_rx_cfg_req *cfg);
 
+/**
+ * wmi_extract_spectral_scaling_params_service_ready_ext: Extract Spectral
+ *                                             scaling params received through
+ *                                             extended service ready event
+ * @wmi_hdl: WMI handle
+ * @evt_buf: Event buffer
+ * @idx: Index
+ * @param: Pointer to Spectral scaling params
+ *
+ * Return: QDF status of operation
+ */
+QDF_STATUS wmi_extract_spectral_scaling_params_service_ready_ext(
+			void *wmi_hdl,
+			uint8_t *evt_buf, uint8_t idx,
+			struct wlan_psoc_host_spectral_scaling_params *param);
+
 /**
  * wmi_extract_dbr_buf_release_fixed : Extract direct buffer rx fixed param
  *				     from buffer release event