MFC r249940:
Teach GEOM and CAM about the difference between the max "size" of r/w and delete
requests.

MFC r252657:
Bump disk(9) ABI version to signify the addition of d_delmaxsize.

Make the addition of the d_delmaxsize binary compatible.  This allows storage
drivers compiled for 9.0 and 9.1 to work by preserving the ABI for disks.

Reviewed by:	mav
MFC r252387:

Make libsupc++'s __cxa_call_terminate() prototype consistent with the
definition.

Submitted by:	dt71@gmx.com