qcacmn: Fix maybe-uninitialized build error

This change fixes build errors with compiler option
-Werror=maybe-uninitialized.

Change-Id: Ieff271ed61575c9e60ce73f5145fff2c2d6dfa24
CRs-Fixed: 2346019

umac/dfs/core/src/filtering/dfs_radar.c

@@ -305,7 +305,6 @@ int dfs_set_thresholds(struct wlan_dfs *dfs, const uint32_t threshtype,
 int dfs_get_thresholds(struct wlan_dfs *dfs,
 		struct wlan_dfs_phyerr_param *param)
 {
-	qdf_mem_zero(param, sizeof(*param));
 	lmac_dfs_get_thresholds(dfs->dfs_pdev_obj, param);
 
 	return 1;

umac/dfs/core/src/misc/dfs.c

@@ -411,6 +411,8 @@ int dfs_control(struct wlan_dfs *dfs,
 		*outsize = sizeof(struct dfs_ioctl_params);
 		dfsparams = (struct dfs_ioctl_params *) outdata;
 
+		qdf_mem_zero(&peout, sizeof(struct wlan_dfs_phyerr_param));
+
 		/* Fetch the DFS thresholds using the internal representation */
 		(void) dfs_get_thresholds(dfs, &peout);