qcacld-3.0: hdd: Add missing blank line after declarations

Checkpatch reported multiple instances of "Missing a blank line after
declarations" in hdd, so fix them.

Change-Id: I0b86be9066425d0a92f88b96e08ff4a57f91765e
CRs-Fixed: 2121927
diff --git a/core/hdd/src/wlan_hdd_wext.c b/core/hdd/src/wlan_hdd_wext.c
index ddd0260..1076595 100644
--- a/core/hdd/src/wlan_hdd_wext.c
+++ b/core/hdd/src/wlan_hdd_wext.c
@@ -8188,6 +8188,7 @@
 	case WE_SET_PHYMODE:
 	{
 		struct hdd_context *phddctx = WLAN_HDD_GET_CTX(adapter);
+
 		if (!hHal)
 			return -EINVAL;
 
@@ -8374,6 +8375,7 @@
 	{
 		bool chwidth = false;
 		struct hdd_context *phddctx = WLAN_HDD_GET_CTX(adapter);
+
 		if (!hHal)
 			return -EINVAL;
 
@@ -9012,6 +9014,7 @@
 	case WE_SET_DEBUG_LOG:
 	{
 		struct hdd_context *hdd_ctx = WLAN_HDD_GET_CTX(adapter);
+
 		if (!hHal)
 			return -EINVAL;