Update git submodules

* Update docs/submodules/clamp.git from branch 'master'
  to 667cb72d3ab1578afc78a77c72b65238df741cd1
  - Add pdp group
    
    Add pdp group code to add/remove policies from active PDP group
    
    Issue-ID: CLAMP-303
    Change-Id: I3fcffd229bc7703231b813948aac14ce63437127
    Signed-off-by: sebdet <sebastien.determe@intl.att.com>
    
1 file changed