Update git submodules

* Update docs/submodules/policy/apex-pdp.git from branch 'master'
  to e460bd5616557985f28da94e82eb0d2673069913
  - Merge "ONAP BBS Policy: CPE-Authentication event throwing error"
  - ONAP BBS Policy: CPE-Authentication event throwing error
    
    Issue-ID: POLICY-1734
    Change-Id: I8d209afb67e9b46a7db516fce76977e679d7ab7b
    Signed-off-by: s00370346 <swarup.nayak1@huawei.com>
    
1 file changed