migen: update submodule

Signed-off-by: Sean Cross <sean@xobs.io>
This commit is contained in:
2019-02-25 16:32:48 +08:00
parent 6ca4b6a398
commit 05480670c5

2
deps/migen vendored

Submodule deps/migen updated: afe4405bec...867adbf5a2