staging: xgifb: use XGIRegInit()

Avoid copy-paste and use XGIRegInit() to initialize registers addresses.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/staging/xgifb/XGI_main_26.c b/drivers/staging/xgifb/XGI_main_26.c
index e0f745d..68a216f 100644
--- a/drivers/staging/xgifb/XGI_main_26.c
+++ b/drivers/staging/xgifb/XGI_main_26.c
@@ -233,7 +233,7 @@
 	return 1;
 }
 
-static void XGIRegInit(struct vb_device_info *XGI_Pr, unsigned long BaseAddr)
+void XGIRegInit(struct vb_device_info *XGI_Pr, unsigned long BaseAddr)
 {
 	XGI_Pr->P3c4 = BaseAddr + 0x14;
 	XGI_Pr->P3d4 = BaseAddr + 0x24;