Printing CPU registers is not helpful during machine initialization.
Moreover, these are straightforward configuration or "can get
resources" errors, so dumping core isn't appropriate either.  Replace
hw_error() by error_report(); exit(1).  Matches how we report these
errors in other machine initializations.

Cc: Richard Henderson <rth@twiddle.net>
Cc: qemu-arm@nongnu.org
Cc: qemu-ppc@nongnu.org
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Signed-off-by: NMarkus Armbruster <armbru@pond.sub.org>
Reviewed-by: NPeter Maydell <peter.maydell@linaro.org>
Reviewed-by: NThomas Huth <thuth@redhat.com>
Message-Id: <1450370121-5768-2-git-send-email-armbru@redhat.com>
Reviewed-by: NRichard Henderson <rth@twiddle.net>