Defines starting with `v' in pexpert/i386

• value pexpert/i386/kdasm.s:98
• VC_CONSOLE_UPDATE_TIMEOUT pexpert/i386/video_console.c:201
• VC_MAX_FORWARD_SIZE pexpert/i386/video_console.c:193
• VC_RESET_BACKGROUND pexpert/i386/video_console.c:237
• VC_RESET_FOREGROUND pexpert/i386/video_console.c:238