commands/search: Fix bug stopping iteration when --no-floppy is used

When using --no-floppy and a floppy was encountered, iterate_device()
was returning 1, causing the iteration to stop instead of continuing.

Signed-off-by: Renaud Métrich <rmetrich@redhat.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>

grub-core/commands/search.c

@@ -64,7 +64,7 @@ iterate_device (const char *name, void *data)
   /* Skip floppy drives when requested.  */
   if (ctx->no_floppy &&
       name[0] == 'f' && name[1] == 'd' && name[2] >= '0' && name[2] <= '9')
-    return 1;
+    return 0;
 
 #ifdef DO_SEARCH_FS_UUID
 #define compare_fn grub_strcasecmp