Update git submodules

* Update docs/submodules/sdc.git from branch 'master'
  to 722eed1c46361a2d8136f1fac528a96749f5dbbd
  - Remove call to `get` on Optional variables
    
    - Made multiple variables Optional
    
    Issue-ID: SDC-2991
    Signed-off-by: Chris Andre <chris.andre@yoppworks.com>
    Change-Id: If3dbfd37e933d10698ad1a93b6762c84e30f69b8
    
1 file changed