* grub-core/fs/zfs/zfs.c (dmu_read): Use void * for some pointers to

	* grub-core/fs/zfs/zfs.c (dmu_read): Use void * for some pointers to
	avoid aliasing.
	(fzap_lookup): Likewise.
	(dnode_get): Likewise.
	(make_mdn): Likewise.
	(zfs_mount): Likewise.
	(fzap_iterate): Use temporary pointer to avoid aliasing.
	(grub_zfs_read): Likewise.
	* grub-core/loader/i386/xnu.c (grub_xnu_boot): Likewise.
	* grub-core/loader/xnu.c (grub_cmd_xnu_kernel): Use void * for some
	pointers to avoid aliasing.
	(grub_cmd_xnu_kernel64): Likewise.
	(grub_xnu_load_driver): Likewise.