qcacld-3.0: Fix possible memory leak when set station key

If calling lim_send_set_sta_key_req with sendRsp==false, it didn't free
the tpSetStaKeyParams memory allocated in this function. This scenario
is possible hit when station key update during roaming before new bss
adding.

Change-Id: I29209576622bc2495a7ce3064e82efca2e70d19a
CRs-Fixed: 2452108

core/wma/src/wma_mgmt.c

@@ -2628,6 +2628,8 @@ out:
 	if (key_info->sendRsp)
 		wma_send_msg_high_priority(wma_handle, WMA_SET_STAKEY_RSP,
 					   (void *)key_info, 0);
+	else
+		qdf_mem_free(key_info);
 }
 #endif