Update git submodules

* Update docs/submodules/externalapi/nbi.git from branch 'master'
  to 063ebf596dc67b870220d2664edc576f43e7f6e5
  - Fix issue with null Pointer for Inputs of type list/map
    
    Issue-ID: EXTAPI-354
    Signed-off-by: aosull01 <adrian.osullivan@huawei.com>
    Change-Id: I5650233598618982c023fa5b786b049981efbaca
    
1 file changed