qcacmn: Initialize the chan_params structure

chan_params structure is uninitialized, due to which variables
inside the chan_params structure have garbage values.
To avoid this, initialize the chan_params structure.

Change-Id: Ic09c0a2d24c2a1eac8f076c7bbd4d25d147370fd
CRs-Fixed: 3205502

target_if/spectral/target_if_spectral.c

@@ -4289,7 +4289,7 @@ static bool
 target_if_spectral_is_valid_80p80_freq(struct wlan_objmgr_pdev *pdev,
 				       uint32_t cfreq1, uint32_t cfreq2)
 {
-	struct ch_params ch_params;
+	struct ch_params ch_params = {0};
 	enum channel_state chan_state1;
 	enum channel_state chan_state2;
 	struct wlan_objmgr_psoc *psoc;