[WIN32SS:ENG] Make gpVgaGraphicsDevice variable static

Author: hpoussin

win32ss/gdi/eng/device.c

@@ -13,7 +13,7 @@
 DBG_DEFAULT_CHANNEL(EngDev);
 
 PGRAPHICS_DEVICE gpPrimaryGraphicsDevice;
-PGRAPHICS_DEVICE gpVgaGraphicsDevice;
+static PGRAPHICS_DEVICE gpVgaGraphicsDevice;
 
 static PGRAPHICS_DEVICE gpGraphicsDeviceFirst = NULL;
 static PGRAPHICS_DEVICE gpGraphicsDeviceLast = NULL;

win32ss/gdi/eng/device.h

@@ -9,7 +9,6 @@ PDEVOBJ_vRefreshModeList(
     PPDEVOBJ ppdev);
 
 extern PGRAPHICS_DEVICE gpPrimaryGraphicsDevice;
-extern PGRAPHICS_DEVICE gpVgaGraphicsDevice;
 
 VOID
 APIENTRY