Update git submodules

* Update docs/submodules/sdnc/oam.git from branch 'master'
  to 56ecc53aed85f4d0686e9a66f92d87ab11bbbebf
  - Merge "Failure encountered while execution of installCerts.py script fails to convert keystore.jks/truststore.jks to keystore.p12/truststore.p12"
  - Failure encountered while execution of installCerts.py script
    fails to convert keystore.jks/truststore.jks to keystore.p12/truststore.p12

    Issue-ID: SDNC-1150

    Signed-off-by: ajay_dp001 <ajay.deep.singh@est.tech>
    Change-Id: I1ef77602b56199ab2c8f9223fdd3c2e6a1878c22

diff --git a/docs/submodules/sdnc/oam.git b/docs/submodules/sdnc/oam.git
index 655b551..56ecc53 160000 (submodule)
--- a/docs/submodules/sdnc/oam.git
+++ b/docs/submodules/sdnc/oam.git
@@ -1 +1 @@
-Subproject commit 655b551fad9188eeca75ed59bf7aa2a7325a52ca
+Subproject commit 56ecc53aed85f4d0686e9a66f92d87ab11bbbebf