hw/display/vga: "vga.h" only contains registers defs, rename it "vga_regs.h"

Signed-off-by: NPhilippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: NThomas Huth <thuth@redhat.com>
Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>

hw/display/vga.c

@@ -24,11 +24,11 @@
 #include "qemu/osdep.h"
 #include "qapi/error.h"
 #include "hw/hw.h"
-#include "vga.h"
 #include "ui/console.h"
 #include "hw/i386/pc.h"
 #include "hw/pci/pci.h"
 #include "vga_int.h"
+#include "vga_regs.h"
 #include "ui/pixel_ops.h"
 #include "qemu/timer.h"
 #include "hw/xen/xen.h"