Add shamu-specific service_manager access.

Commit: cd82557d4069c20bda8e18aa7f72fc0521a3ae32 removes the global
find and list service_manager permissions.  Add those that are
currently, but not explicitly, used.

Bug: 18106000

Change-Id: Ie0ce8de2af8af2cbe4ce388a2dcf4534694c994a