winepulse: Adapt "get_capture_buffer_params" struct to mmdevapi's.

dlls/winepulse.drv/mmdevdrv.c

@@ -1563,7 +1563,7 @@ static HRESULT WINAPI AudioCaptureClient_GetBuffer(IAudioCaptureClient *iface,
     params.stream = This->pulse_stream;
     params.data   = data;
     params.frames = frames;
-    params.flags  = flags;
+    params.flags  = (UINT*)flags;
     params.devpos = devpos;
     params.qpcpos = qpcpos;
     pulse_call(get_capture_buffer, &params);

dlls/winepulse.drv/unixlib.h

@@ -117,7 +117,7 @@ struct get_capture_buffer_params
     HRESULT result;
     BYTE **data;
     UINT32 *frames;
-    DWORD *flags;
+    UINT *flags;
     UINT64 *devpos;
     UINT64 *qpcpos;
 };