verilog: Fixing include path.

The include lines previously had,
`include "sky130_fd_sc_hd__o221a.pp.functional.v"`
but the actual filename is
`include "sky130_fd_sc_hd__o221a.functional.pp.v"`.

Signed-off-by: Tim 'mithro' Ansell <tansell@google.com>
tree: c1a7d6144a8c8498fbef63f883acd37dd8117cb1
  1. .gitignore
  2. LICENSE
  3. README.rst
  4. cells/
  5. models/
  6. tech/
  7. timing/