Pushed to the branch.

With this patch, the instructions generated are the ones
that are expected, for example:

$ objdump --disassemble sum_r17.o  | grep xsaddqp
  3cc:   08 08 00 fc     xsaddqp v0,v0,v1
  3dc:   08 08 00 fc     xsaddqp v0,v0,v1
  3ec:   08 08 00 fc     xsaddqp v0,v0,v1
  410:   08 08 00 fc     xsaddqp v0,v0,v1
  420:   08 60 00 fc     xsaddqp v0,v0,v12
  424:   08 68 00 fc     xsaddqp v0,v0,v13
  428:   08 08 00 fc     xsaddqp v0,v0,v1
  414:   08 08 00 fc     xsaddqp v0,v0,v1


     Fix pattern substition for _r17 and _c17.

     libgfortran/ChangeLog:

             * Makefile.am: Fix pattern substitution for _r17 and _c17.
             * Makefile.in: Regenerate.
             * configure: Regenerate.

Regards

	Thomas