boot: compare filename suffixes without case

This is VFAT world after all.

(cherry picked from commit 764faf6)
(cherry picked from commit 18143ed)
(cherry picked from commit 04cd06e)
(cherry picked from commit 71da938)
(cherry picked from commit 11db58b)

Author: poettering

src/boot/efi/boot.c

@@ -1349,7 +1349,7 @@ static void config_entry_parse_tries(
                 return;
 
         /* Boot counter in the middle of the name? */
-        if (!streq16(counter, suffix))
+        if (!strcaseeq16(counter, suffix))
                 return;
 
         entry->tries_left = tries_left;