Fixing LEF 'CLASS' on fill cells.

The fill cells should have 'CLASS' of 'CORE SPACER' in the LEF.

All fill cells should now have;
```lef
  CLASS CORE SPACER ;
```

Updating sky130_fd_sc_hs 0.0.1.

Signed-off-by: Tim 'mithro' Ansell <me@mith.ro>
14 files changed
tree: 80f8e4a4490ff96ac3a9da5531b9c45d36e03c16
  1. .gitignore
  2. LICENSE
  3. README.rst
  4. cells/
  5. models/
  6. tech/
  7. timing/