pushed: [RFA] gdbserver crash if the_target->supports_z_point_type is NULL

[Joel Brobecker]

> > gdb/gdbserver/ChangeLog:
> > 
> >         PR server/17023
> >         * mem-break.c (z_type_supported): Return zero if
> >         THE_TARGET->SUPPORTS_Z_POINT_TYPE is NULL.
> 
> OK.

Thanks, Pedro. Patch has been pushed.

-- 
Joel