This fixes a -Waddress-of-packed-member warning about a possibly unaligned pointer from GCC 9 when calling convert_label(). __packed has to be removed from struct exfat_dirent as well to fix an alignment warning when casting from a struct exfat_dirent pointer to a struct exfat_de_label pointer. Reviewed by: cem Differential Revision: https://reviews.freebsd.org/D32144