blsuki: Use specified device in case of fallback

Currently if the fallback option is enabled and no files are found in
the specified directory it searches the default (loader/conf) directory
but always in the device set by the root environment variable. It makes
more sense and also the comment in the code implies, that the default
directory on the current device should be searched.

Signed-off-by: Radoslav Kolev <radoslav.kolev@suse.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>

Author: radolin

grub-core/commands/blsuki.c

@@ -1231,7 +1231,7 @@ blsuki_find_entry (struct find_entry_info *info, bool enable_fallback, enum blsu
 	  tmp = blsuki_update_boot_device (default_dir);
 	  tmp = grub_stpcpy (tmp, cmd_dir);
 
-	  blsuki_set_find_entry_info (info, default_dir, NULL, cmd_type);
+	  blsuki_set_find_entry_info (info, default_dir, info->devid, cmd_type);
 	  grub_dprintf ("blsuki", "Entries weren't found in %s, fallback to %s\n",
 			read_entry_info.dirname, info->dirname);
 	  fallback = true;