Do not look up stored mappings on complex devices

[Karl-G1]

Fixes #962

The SII mapping logic in ecx_map_sii assumes that if no process data was found for CoE devices, earlier matching devices can be used. However, complex devices can have the same ID and lack process data in some instances. This fix works around the issue by only applying previous mapping data if the device is not CoE or SoE enabled.

SOEM/src/ec_config.c

Lines 555 to 567 in b410bf6

	static int ecx_map_sii(ecx_contextt *context, uint16 slave)
	{
	uint32 Isize, Osize;
	int nSM;
	ec_eepromPDOt eepPDO;
	Osize = context->slavelist[slave].Obits;
	Isize = context->slavelist[slave].Ibits;
	if (!Isize && !Osize) /* find PDO in previous slave with same ID */
	{
	(void)ecx_lookup_mapping(context, slave, &Osize, &Isize);
	}

SOEM/src/ec_config.c

Lines 470 to 473 in b410bf6

	/* If slave has SII mapping and same slave ID done before, use previous mapping.
	* This is safe because SII mapping is constant for same slave ID.
	*/
	static int ecx_lookup_mapping(ecx_contextt *context, uint16 slave, uint32 *Osize, uint32 *Isize)