m32r.c: Include integrate.h in order to get the prototype for get_hard_reg_initial_val().

m32r.c: Include integrate.h in order to get the prototype for get_hard_reg_initial_val().

* config/m32r/m32r.c: Include integrate.h in order to get the prototype for
  get_hard_reg_initial_val().
* config/m32r/m32r.md (m32rpipeline): Remove unused value "m32r" and tidy up
  indentation.
  (final_presence_set): Use absence_set instead, so that if there is nothing in
  the "o" pipe the "s" pipe can be scheduled.

From-SVN: r85221