Update git submodules

Update git submodules

* Update docs/submodules/oom.git from branch 'master'
  to b7d6431c75a0b88fe9ed1e868cffe3b3229a8d94
  - Merge "Revert "Fix for appc clustering install failure""
  - Revert "Fix for appc clustering install failure"

    It is reported that the old version of this script is
    currently working, so we will leave it as is for now
    and make changes later.

    This reverts commit 616fb1cea6cadc5e368f43176eb0f4d5342b87b7.

    Change-Id: I38d8bff135fbcc3eb407d2f3fcf295cf58c386d2
    Signed-off-by: Patrick Brady <patrick.brady@att.com>
    Issue-ID: APPC-1242