Unknown vendor:board message can be triggered by -m too

Thanks to Stefan for pointing this one out.

Corresponding to flashrom svn r287 and coreboot v2 svn r3403.
Signed-off-by: Peter Stuge <peter@stuge.se>
Acked-by: Peter Stuge <peter@stuge.se>

board_enable.c

@@ -678,7 +678,7 @@ static struct board_pciid_enable *board_match_coreboot_name(const char *vendor,
 	if (partmatch)
 		return partmatch;
 
-	printf("\nUnknown vendor:board in coreboot table: %s:%s\n\n", vendor, part);
+	printf("\nUnknown vendor:board from coreboot table or -m option: %s:%s\n\n", vendor, part);
 	return NULL;
 }