Incorrect ScInstr attribute for IMULH_R & ISMULH_R

[Boog900]

Mithril sets group_par_is_source to true for IMULH_R & ISMULH_R and does not set can_reuses to true

mithril/src/randomx/superscalar.rs

Lines 303 to 323 in 104ee0f

	ScOpcode::IMULH_R => ScInstr {
	info,
	dst: -1,
	src: -1,
	mod_v: 0,
	imm32: 0,
	op_group: ScOpcode::IMULH_R,
	group_par_is_source: true,
	can_reuse: false,
	op_group_par: gen.get_u32() as i32,
	},
	ScOpcode::ISMULH_R => ScInstr {
	info,
	dst: -1,
	src: -1,
	mod_v: 0,
	imm32: 0,
	op_group: ScOpcode::ISMULH_R,
	group_par_is_source: true,
	can_reuse: false,
	op_group_par: gen.get_u32() as i32,

This is different to the reference implementation:

https://github.com/tevador/RandomX/blob/1c603a23fa0004615b4f2d42ad95f2693f16093b/src/superscalar.cpp#L465-L480