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<https://github.com/RTimothyEdwards/open_pdks/pull/366|#366 OpenLane configuration updates>
Pull request opened by <https://github.com/kareefardi|kareefardi>
Rename:

```
FP_PDN_RAILS_LAYER -&gt; FP_PDN_RAIL_LAYER
FP_PDN_LOWER_LAYER -&gt; FP_PDN_VERTICAL_LAYER
FP_PDN_UPPER_LAYER -&gt; FP_PDN_HORIZONTAL_LAYER
```

Move from OpenLane:

```
FP_PDN_VOFFSET
FP_PDN_VPITCH
FP_PDN_HOFFSET
FP_PDN_HPITCH
```
<https://github.com/RTimothyEdwards/open_pdks|RTimothyEdwards/open_pdks>
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<https://github.com/RTimothyEdwards/open_pdks/pull/366|#366 OpenLane configuration updates>
Pull request closed by <https://github.com/RTimothyEdwards|RTimothyEdwards>
<https://github.com/RTimothyEdwards/open_pdks|RTimothyEdwards/open_pdks>