[Openocd-development] [COMMIT] Various XScale fixes

[Spen <sp...@sp...>]

> Various XScale fixes:
> 
> - removed a raft of unecessary exit() calls. Issuing a reset 
> will solve these ails.
> - now uses jtag_state_pathmove() instead of making 
> assumptions about implementation of tjag_statemove().
> - fixed a couple of bugs in timeout handling
> - removed megabytes of log output when communication is failing.
> - sleep is now 300ms as documented instead of 3000ms
> - fixed error path of bulk write
> - debug_handler can now be issued during normal operation + 
> has help text.
> 

committed.

Cheers
Spen