Fix the name detection for the Minolta 5D/7D

The Konica Minolta 5D and 7D were being converted to a makermodel of "KONICA DYNAX 5D" and "KONICA DYNAX 7D" which didn't work for the dcraw coefficient lookup. This changes it to "MINOLTA DYNAX 5D" and "MINOLTA DYNAX 7D" which does seem to work. The dcraw table actually uses "MINOLTA DYNAX 5" and "MINOLTA DYNAX 7" which are actually older film cameras, but the lookup method used doesn't seem to care for trailing characters.