recipe_bundler: rollback recipe prefix to infra/recipe_bundles/

Change-Id: I43268e4052d763a99af1f7b6b851a3e423b7ba3c
Bug: b:203003836
Reviewed-on: https://chromium-review.googlesource.com/c/codecs/infra/+/3245703
Reviewed-by: Bharath Chandra Elluru <ellurubharath@google.com>
Commit-Queue: Roberto Alanis Baez <alanisbaez@google.com>
2 files changed