misc/53573: hfs hybrid capability missing in standard build for macppc and mac68k

[scole_mail%gmx.com@localhost]

>Number:         53573
>Category:       misc
>Synopsis:       hfs hybrid capability missing in standard build for macppc and mac68k
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    misc-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Sep 05 16:05:00 +0000 2018
>Originator:     scole
>Release:        8.0
>Organization:
none
>Environment:
NetBSD dstar 8.0_STABLE NetBSD 8.0_STABLE (GENERIC) #3: Tue Aug 28 12:51:59 PDT 2018  scole@dstar:/home/scole/nbsd/cvs/8_0/obj/sys/arch/i386/compile/GENERIC i386
>Description:
macppc and mac68k iso install images (that will boot) can't be created
without an external tool.

This issue came up in PR 53549, which was created for a separate issue (macppc 601 install media).

Trying to summarize the issue, apparently for macppc and mac68k
 - mkisofs from cdrtools 2.01 (not newer) is required to make iso images,
   newer versions of cdrtools may dump core.
 - it is desired to have the HFS hybrid capability integrated into the
   standard build.
 - apparently, adding support for mkisofs compatible options of
    -hfs -part -hide-hfs-list --macbin -map -boot-hfs-file -apple
   is needed.
 -  http://gnats.netbsd.org/53549 contains a little more info

Anyone familiar with this topic feel free to update or correct this PR as needed.

Thanks
>How-To-Repeat:

>Fix: