The expression 'pcap_packet_header.incl_len' needs to be clear

[yaohuixguo]

Passing expression pcap_packet_header.incl_len to fread, which uses it as an offset.
pcap_packet_header.incl_len is an uncertain value, which may cause m_pcap_packet_data_buffer to be affected line 141.

spdm-dump/spdm_dump/spdm_dump_pcap.c

Lines 136 to 142 in 1485e03

	if (fread(m_pcap_packet_data_buffer, 1,
	pcap_packet_header.incl_len,
	m_pcap_file) != pcap_packet_header.incl_len) {
	return;
	}
	dump_pcap_packet(m_pcap_packet_data_buffer,
	pcap_packet_header.incl_len);

same issues:
m_pcap_global_header.snap_len needs to judge the range.

spdm-dump/spdm_dump/spdm_dump_pcap.c

Lines 85 to 90 in 1485e03

	m_pcap_packet_data_buffer =
	(void *)malloc(m_pcap_global_header.snap_len);
	if (m_pcap_packet_data_buffer == NULL) {
	printf("!!!memory out of resources!!!\n");
	return false;
	}

[Xiaohanjlll]

I will check it.