(bug_ops, monitor_desc): now static.
(monitor_desc): in several places, check and/or set to NULL.
* remote-hms.c (hms_files_info): Add the appropriate items where
missing in the printf call.
* remote-bug.c: new file for m88k bug support.
* config/m88k/m88k.mt (TDEPFILES): added remote-bug.o.
config files moved to an appropriate config/<cpu> subdirectory.
* nm-*, xm-*, tm-*: All native, host, and target files, which
get linked to nm.h, xm.h, and tm.h respectively by configure,
moved to appropriate config/<cpu> subdirectory.