unnecessary remoteloadprotocol and remoteloadtype support.
* (expect expect_prompt): Change names to monitor_expect and
monitor_expect_prompt. Make them global.
* (printf_monitor): Change name to monitor_printf. Make global.
* (monitor_read_memory): Flush command echo to avoid parsing
ambiguity with CPU32Bug monitor.
* (monitor_load): Remove remoteloadprotocol and remoteloadtype
support. Call target_ops->load_routine, default to
monitor_load_srec.
* (monitor_load_srec): Remove everything but S-record support.
* monitor.h (monitor_ops): Add load_routine to provide monitor
specific download capability.
* remote-est.c: Clean up copyrights and comments.
* w89k-rom.c: Use new xmodem support.
* xmodem.c xmodem.h: New files to support xmodem downloads.
* rom68k-rom.c remote-est.c: Fix copyrights, add load_routine
entry to monitor_ops.
* cpu32bug-rom.c: New file to support Moto BCC debuggers.
* config/m68k/est.mt (TDEPFILES): Add cpu32bug.o.
* config/pa/hppapro.mt (TDEPFILES): Add xmodem.o.
