Staging: vt6655: remove VOID definition and use

Signed-off-by: Charles Clément <caratorn@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/staging/vt6655/ioctl.h b/drivers/staging/vt6655/ioctl.h
index 07d2283..dc278ae 100644
--- a/drivers/staging/vt6655/ioctl.h
+++ b/drivers/staging/vt6655/ioctl.h
@@ -43,7 +43,7 @@
 int private_ioctl(PSDevice pDevice, struct ifreq *rq);
 
 /*
-VOID vConfigWEPKey (
+void vConfigWEPKey (
     IN PSDevice pDevice,
     IN DWORD    dwKeyIndex,
     IN PBYTE    pbyKey,