`iDMA legalizer` has dependencies from `valid`s to `ready`s on internal signals

[thommythomaso]

Some internal signals in the legalizer have their valid signals dependent on ready signals. Ideally, to keep it consistent with the AXI handshaking, this should not be the case.

iDMA/src/idma_legalizer.sv

Lines 374 to 388 in 201ec2e

	always_comb begin : proc_legalizer_flow_control
	if (opt_tf_q.decouple_rw) begin
	r_tf_ena = (r_ready_i & !flush_i) | kill_i;
	w_tf_ena = (w_ready_i & !flush_i) | kill_i;
	r_valid_o = r_tf_q.valid & r_ready_i & !flush_i;
	w_valid_o = w_tf_q.valid & w_ready_i & !flush_i;
	end else begin
	r_tf_ena = (r_ready_i & w_ready_i & !flush_i) | kill_i;
	w_tf_ena = (r_ready_i & w_ready_i & !flush_i) | kill_i;
	r_valid_o = r_tf_q.valid & w_ready_i & r_ready_i & !flush_i;
	w_valid_o = w_tf_q.valid & r_ready_i & w_ready_i & !flush_i;
	end
	end