Update git submodules
- Update extensions/Renameuser from branch 'REL1_32' to 7d0f5f0d9c2df36ffe3f88fb8909147cae4eb000
- Suppress issue from phan-taint-check-plugin
Partial backport from I13fb505ea5ece15c007e6e857481996a11c1aad4 Change-Id: I5c80f9a1d30724604d3e0c01e98926afc8b25fbb
- Suppress issue from phan-taint-check-plugin