Fix p10 fusion regtests

Fix p10 fusion regtests

Update the count of matches for the fusion combine patterns after
the recent changes to them.  At Segher's request, used \m and \M
in the match patterns. Also I have grouped together all alternatives of
each fusion insn, which should hopefully make this test a little less
fragile.

gcc/testsuite/ChangeLog

	* gcc.target/powerpc/fusion-p10-2logical.c: Update pattern
	match counts.
	* gcc.target/powerpc/fusion-p10-addadd.c: Update pattern match
	counts.
	* gcc.target/powerpc/fusion-p10-ldcmpi.c: Update pattern match
	counts.
	* gcc.target/powerpc/fusion-p10-logadd.c: Update pattern match
	counts.