Update git submodules

Update git submodules

* Update docs/submodules/sdnc/oam.git from branch 'master'
  to 2126ef44399069a1adbf00da09b9cb8eabaab892
  - Merge "Templates for SDNR DMAAP payload OOFPCIPOC"
  - Templates for SDNR DMAAP payload OOFPCIPOC

    Velocity templates used to create DMAAP payload string
    that is sent with DMAAP message from SDNR to policy
    confirming successful configuration of PCI value of a cell
    or ho flag of neighbors

    Issue-ID: SDNC-725
    Signed-off-by: SandeepLinux <Sandeep.Shah@ibm.com>
    Change-Id: Ic07b567ebf5c79727c5a0a236ffcd54d89a3c3ed