qcacmn: Fix compilation errors for DBR enable

Fix compilation errors for direct buffer rx component enable.

Change-Id: If0913b8357267fa65e61e0c7d197025ff850930b
CRs-Fixed: 2497783

target_if/direct_buf_rx/src/target_if_direct_buf_rx_api.c

@@ -23,6 +23,7 @@
 #include <wlan_objmgr_psoc_obj.h>
 #include <wlan_objmgr_cmn.h>
 #include "target_if_direct_buf_rx_main.h"
+#include <qdf_module.h>
 
 QDF_STATUS direct_buf_rx_init(void)
 {

wmi/inc/wmi_unified_dbr_api.h

@@ -24,10 +24,6 @@
 
 #include "wmi_unified_dbr_param.h"
 
-/* Opaque handle of WMI structure */
-struct wmi_unified;
-typedef struct wmi_unified *wmi_unified_t;
-
 /**
  * wmi_unified_dbr_ring_cfg: Configure direct buffer rx rings
  * @wmi_handle: WMI handle