Make stage-1 check for inappropriate files
Make stage-1 check for inappropriate files

The stage one loader would try to load any file named STAGE2.BIN.
Code was added to check the attribute flags to avoid loading the
volume label and directories.

vendu/Ukko,vendu/Ukko,vdamewood/Petrichor,vendu/Ukko,vdamewood/Petrichor,vdamewood/Petrichor