Update git submodules

* Update docs/submodules/optf/osdf.git from branch 'master'
  to 4af692da201b48aae94858519df7d809382fafbc
  - swagger updates
    
    Issue-ID: OPTFRA-758
    Signed-off-by: dhebeha <dhebeha.mj71@wipro.com>
    Change-Id: I9100b80049c2523259890a4a07c0c635318c2fd5
    
1 file changed