[binutils-gdb] sim: parse_args: display getopt error ourselves

[sergiodj+buildbot@redhat.com]

*** TEST RESULTS FOR COMMIT 77cf2ef5dc9099501529151921a73be904757466 ***

Author: Mike Frysinger <vapier@gentoo.org>
Branch: master
Commit: 77cf2ef5dc9099501529151921a73be904757466

sim: parse_args: display getopt error ourselves

Fix a long standing todo where we let getopt write directly to stderr
when an invalid option is passed.  Use the sim io funcs instead as they
go through the filtered callbacks that gdb wants.