[binutils-gdb] sim: mcore: convert to nrun

[sergiodj+buildbot@redhat.com]

*** TEST RESULTS FOR COMMIT ea6b7543b422836409fe7848abbfcb452ad26398 ***

Author: Mike Frysinger <vapier@gentoo.org>
Branch: master
Commit: ea6b7543b422836409fe7848abbfcb452ad26398

sim: mcore: convert to nrun
A lot of cpu state is stored in global variables, as is memory handling.
The sim_size support needs unwinding at some point.  But at least this
is an improvement on the status quo.