visium: Fix non-robust split condition in define_insn_and_split

visium: Fix non-robust split condition in define_insn_and_split

This patch is to fix some non-robust split conditions in some
define_insn_and_splits, to make each of them applied on top of
the corresponding condition for define_insn part, otherwise the
splitting could perform unexpectedly.

gcc/ChangeLog:

	* config/visium/visium.md (*add<mode>3_insn, *addsi3_insn, *addi3_insn,
	*sub<mode>3_insn, *subsi3_insn, *subdi3_insn, *neg<mode>2_insn,
	*negdi2_insn, *and<mode>3_insn, *ior<mode>3_insn, *xor<mode>3_insn,
	*one_cmpl<mode>2_insn, *ashl<mode>3_insn, *ashr<mode>3_insn,
	*lshr<mode>3_insn, *trunchiqi2_insn, *truncsihi2_insn,
	*truncdisi2_insn, *extendqihi2_insn, *extendqisi2_insn,
	*extendhisi2_insn, *extendsidi2_insn, *zero_extendqihi2_insn,
	*zero_extendqisi2_insn, *zero_extendsidi2_insn): Fix split condition.