qcacld-3.0: Fix csr_get_current_band() context param

Currently csr_get_current_band() takes a tHalHandle context param.
However csr is internal to the UMAC, and hence it should be using the
"real" context pointer type instead of the opaque handle, so update
the API to expect a struct mac_context pointer..

This is part of an ongoing campaign to remove or replace all instances
of tHalHandle.

Change-Id: I93a3950b9ee26284ddfdf167b900d2f6983625f7
CRs-Fixed: 2347655

core/sme/inc/csr_api.h

@@ -1635,7 +1635,7 @@ QDF_STATUS csr_roam_issue_ft_preauth_req(tpAniSirGlobal mac_ctx,
 	return QDF_STATUS_E_NOSUPPORT;
 }
 #endif
-enum band_info csr_get_current_band(tHalHandle hHal);
+enum band_info csr_get_current_band(struct mac_context *mac);
 typedef void (*csr_readyToSuspendCallback)(void *pContext, bool suspended);
 #ifdef WLAN_FEATURE_EXTWOW_SUPPORT
 typedef void (*csr_readyToExtWoWCallback)(void *pContext, bool status);

core/sme/src/common/sme_api.c

@@ -1786,7 +1786,7 @@ QDF_STATUS sme_set_ese_roam_scan_channel_list(tHalHandle hHal,
 	}
 	status = csr_create_roam_scan_channel_list(pMac, sessionId,
 				pChannelList, numChannels,
-				csr_get_current_band(hHal));
+				csr_get_current_band(pMac));
 	if (QDF_IS_STATUS_SUCCESS(status)) {
 		if (NULL != curchnl_list_info->ChannelList) {
 			j = 0;
@@ -5816,7 +5816,7 @@ QDF_STATUS sme_get_freq_band(tHalHandle hHal, enum band_info *pBand)
 
 	status = sme_acquire_global_lock(&pMac->sme);
 	if (QDF_IS_STATUS_SUCCESS(status)) {
-		*pBand = csr_get_current_band(hHal);
+		*pBand = csr_get_current_band(pMac);
 		sme_release_global_lock(&pMac->sme);
 	}
 	return status;

core/sme/src/csr/csr_api_roam.c

@@ -1751,11 +1751,9 @@ static void init_config_param(tpAniSirGlobal pMac)
 	pMac->roam.configParam.csr_mawc_config.mawc_enabled = true;
 }
 
-enum band_info csr_get_current_band(tHalHandle hHal)
+enum band_info csr_get_current_band(struct mac_context *mac)
 {
-	tpAniSirGlobal pMac = PMAC_STRUCT(hHal);
-
-	return pMac->mlme_cfg->gen.band_capability;
+	return mac->mlme_cfg->gen.band_capability;
 }
 
 /* This function flushes the roam scan cache */