drm/bochs: Add support for drm_panic

Add drm_panic module for bochs drm so that panic screen can be displayed
on panic.

Signed-off-by: Ryosuke Yasuoka <ryasuoka@redhat.com>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://lore.kernel.org/r/20250613132023.106946-1-ryasuoka@redhat.com


Signed-off-by: Jocelyn Falempe <jfalempe@redhat.com>