pa.md (millicode expands): Change operand 3 in the expand pattern from a clobber of a match_scratch to a...

	* pa.md (millicode expands): Change operand 3 in the expand
	pattern from a clobber of a match_scratch to a clobber of a
	match_operand with a register predicate.  Make appropriate
	change in the generated RTL.
	(millicode insns): Clobber a match_operand with a register
	predicate instead of a match_scratch expression.
	* pa.c (emit_hpdiv_const): Likewise.

From-SVN: r3122