x86: make variables static

These variables are only used in their source files, so make them static.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

arch/x86/boot/video-bios.c

@@ -17,7 +17,7 @@
 #include "boot.h"
 #include "video.h"
 
-__videocard video_bios;
+static __videocard video_bios;
 
 /* Set a conventional BIOS mode */
 static int set_bios_mode(u8 mode);
@@ -119,7 +119,7 @@ static int bios_probe(void)
 	return nmodes;
 }
 
-__videocard video_bios =
+static __videocard video_bios =
 {
 	.card_name	= "BIOS",
 	.probe		= bios_probe,