vendor: don't emit duplicate iobuf submodule names.
authorN. Engelhardt <nakengelhardt@gmail.com>
Sun, 21 Jul 2019 07:49:21 +0000 (15:49 +0800)
committerwhitequark <cz@m-labs.hk>
Sun, 21 Jul 2019 07:49:21 +0000 (07:49 +0000)
commit928f3858469b35696343aacadb8933746fb2ffe4
tree09917100aca41f4dc71e092b5078a2b6a4ddeec4
parent87bdf06ff5e175322b8278381f49eb9de9bad35f
vendor: don't emit duplicate iobuf submodule names.

These are no longer allowed after commit 698b005.
nmigen/vendor/lattice_ecp5.py
nmigen/vendor/lattice_ice40.py
nmigen/vendor/xilinx_7series.py
nmigen/vendor/xilinx_spartan_3_6.py