Update git submodules

Update git submodules

* Update docs/submodules/clamp.git from branch 'master'
  to b5908d85cf0d851f5f9cd637b2252ea1494c9169
  - Merge "Fix issues in Operational Policy UI"
  - Fix issues in Operational Policy UI

    Add prefix for Guard Policy Id; display attributes correctly when guard
    type is FrequencyLimiter; initialize guard policy type accordingly; add
    default value for guard active start/end attributes;

    Issue-ID: CLAMP-386, CLAMP-387
    Change-Id: I4c57ddcfccba207429fb1e75d9d2a4d6b0f15e8a
    Signed-off-by: xg353y <xg353y@intl.att.com>