CRIS v32: Update and improve fasttimer.c

CRIS v32: Update and improve fasttimer.c

- Change include path to machine dependent header files.
- Remove __INLINE__, it expands to inline anyway.
- Don't initialize static variables.
- Change timers to use fasttimer_t instead of timevals.
- Change name of timeval_cmp to fasttime_cmp to highlight this.
- Register name for first timer is regi_timer0, not regi_timer.
- Whitespace and formatting changes.
- Don't return if we're blocking interrupts, goto done and restore interrupts.
- Disable interrupts while walking the fasttimer list, only restore
  while doing the callback.
- Remove #ifdef DECLARE_WAITQUEUE, this code won't be used in another OS.
- Remove CVS log.