Update git submodules

* Update docs/submodules/appc.git from branch 'elalto'
  to 547d95ea70a5312bfa9a116b9d290893382ff752
  - Remove OJSI-176 and OJSI-177 from release notes

    Both tickets mentioned in the title are false positives.
    In OJSI jira they are marked as "Not a bug" thus they shouldn't be
    considered as "fixed security issues"

    Issue-ID: OJSI-176
    Issue-ID: OJSI-177
    Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>
    Change-Id: I4d3c0939b5df68ed42e334d492a2751143b41e39

  - Change to snapshot parent version

    Change to appc parent version 2.6.3-SNAPSHOT

    Change-Id: I51e4485098a271ff80de64ea6c20a81df94c7d8f
    Signed-off-by: Patrick Brady <patrick.brady@att.com>
    Issue-ID: APPC-1686

  - Increment version to 1.6.5-SNAPSHOT

    Change-Id: Ic0e49aef6dc78b1a55e8c7c051e716339f3802f6
    Signed-off-by: Patrick Brady <patrick.brady@att.com>
    Issue-ID: APPC-1686

  - APPC R5 release note fix

    fixed a typo

    Issue-ID: APPC-1722
    Change-Id: Id1bb4cdbc019d2b92f57c2610e279d964948daae
    Signed-off-by: Taka Cho <takamune.cho@att.com>
  - APPC R5 release note

    added APPC R5 release note

    Issue-ID: APPC-1722
    Change-Id: Ic1b19e49fef77e3ed3b995f774cb0f69813fcbe9
    Signed-off-by: Taka Cho <takamune.cho@att.com>
  - Add 1.6.4 release file

    Change-Id: I41e0c64e25d61396c700ed4b9c275d21fcef446a
    Signed-off-by: Patrick Brady <patrick.brady@att.com>
    Issue-ID: APPC-1735

  - replaced by tosca.datatype.version

    consolidate to tosca.datatype.version

    Issue-ID: APPC-736
    Change-Id: Ic0bf2c8743d4b299fc135d53323fffbcd6b7c531
    Signed-off-by: Taka Cho <takamune.cho@att.com>
  - Set appc parent 2.6.2

    Change-Id: I4d3fe28ac744a62b448816fe14b645f19a3e5209
    Signed-off-by: Patrick Brady <patrick.brady@att.com>
    Issue-ID: APPC-1735

  - Increment version to 1.6.4-SNAPSHOT

    Change-Id: I0dfdd848265f21e1584903ea14aa4df6d08a2f94
    Signed-off-by: Patrick Brady <patrick.brady@att.com>
    Issue-ID: APPC-1686

  - Sonar fix- APPC-1715

    Fixed multiple sonar issues across this file

    Issue-ID: APPC-1715
    Change-Id: I5a7df4bde164b8ec3c8f91f07646d0630d52fa59
    Signed-off-by: Arundathi Patil <arundpil@in.ibm.com>
  - Sonar Fix: APPC-1716

    Fixed sonar issues across this file

    Issue-ID: APPC-1716
    Change-Id: Ic9d8d1c0ff22c9d0cc9831793d1e3550e5f62897
    Signed-off-by: Arundathi Patil <arundpil@in.ibm.com>
  - Sonar fix: APPC-1717

    Fixed sonar issues across these files

    Issue-ID: APPC-1717
    Change-Id: I25fc139344e88d389e24b91a7d6796fea6f251c2
    Signed-off-by: Arundathi Patil <arundpil@in.ibm.com>

diff --git a/docs/submodules/appc.git b/docs/submodules/appc.git
index 1519246..547d95e 160000 (submodule)
--- a/docs/submodules/appc.git
+++ b/docs/submodules/appc.git
@@ -1 +1 @@
-Subproject commit 151924670b390b8811283802ae7e20c3d63505da
+Subproject commit 547d95ea70a5312bfa9a116b9d290893382ff752