Whitelist RECIPE_MODULES imports.
Whitelist RECIPE_MODULES imports.

Change-Id: Id6a19abcbff44b70fd1406c723e1b5a394d02d1e
Reviewed-on: https://chromium-review.googlesource.com/c/infra/luci/recipes-py/+/1965648
Auto-Submit: Garrett Beaty <a0767768af30bcbe01b6de5024355c539362a830@chromium.org>
Reviewed-by: Robbie Iannucci <40f3d43a28ebae3cb819288542e1c84d73d962d5@chromium.org>
Commit-Queue: Robbie Iannucci <40f3d43a28ebae3cb819288542e1c84d73d962d5@chromium.org>

luci/recipes-py,luci/recipes-py