More debug output, fixed kernel panic
Add an mmcprobe periph driver

The mmcprobe is similar to SCSI probe and ATA ataprobe,
its purpose is to attach to each newly found SIM and
try to identify it.
Set max_target and max_lun to 0
Fix stupid compile error
Init the counter to zero when beginning targets scan
Prettyfy
Disable attach of mmcprobe for a while...