before change nonspec->spec in vcr_alloc_mac
sw_sel_op_ip_merged -> sw_sel_op_ip_merged
gitignore was changed.
vcr_alloc_mac.v:
	shared_sw_active_op: flit_valid_ip_ivc-> shared_flit_valid_ip_ivc
vcr_alloc_mac:
	sw_route_ip_ivc_op_merged:
		shared_free_nonspec_ip_ivc->shared_free_spec_ip_ivc
flits have arrived at the output port
The first packet has arrived at the destination node.

But, the flow control function has not been implemented.
The P2P transmission has been successfully.
The 'shared_vc_out' signals has been implemented.
Ready to be submitted.