Rename fields of 'struct chs_s' and use in floppy lba2chs().

Rename the fields of 'struct chs_s' so that it can be used both to
describe a drive and to describe a particular sector on a drive.

Update floppy.c:lba2chs() to return a 'struct chs_s' instead of
passing the results via pointers.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
9 files changed