Updating submodules
Updating submodules

Summary:
GitHub commits:

https://github.com/facebook/fbthrift/commit/e52864e3a23e4a08972b956fe86fc5e587c94061
https://github.com/facebook/litho/commit/584574d9f8861332f7511a01bd06c0af99565083
https://github.com/facebook/rocksdb/commit/cd50078ae0fbad85ae04d8ddf30c049be7f97b4a
https://github.com/facebook/squangle/commit/d8498558c8916b3842313395abf8219ee5ead3f2
https://github.com/facebookincubator/katran/commit/1152b0135a005e2e819173bcee5f525fc3d82d6f

Reviewed By: wittgenst

fbshipit-source-id: bf739c3f53441d52632ebdb9c95a440e508c02f1

facebook/watchman,facebook/watchman,facebook/watchman,facebook/watchman,nodakai/watchman,nodakai/watchman,nodakai/watchman,facebook/watchman,nodakai/watchman,facebook/watchman,facebook/watchman,facebook/watchman,nodakai/watchman,nodakai/watchman,nodakai/watchman,nodakai/watchman,nodakai/watchman,facebook/watchman