Update git submodules

Update git submodules

* Update docs/submodules/so.git from branch 'master'
  to 680401b41d5b53ef3de6613334415939ee435eae
  - Merge "Remove the declaration of thrown exception 'org.onap.so.apihandlerinfra.infra.rest.exception.NoRecipeException', as it cannot be thrown from method's body."
  - Remove the declaration of thrown exception 'org.onap.so.apihandlerinfra.infra.rest.exception.NoRecipeException', as it cannot be thrown from method's body.

    remove the exception

    Issue-ID: SO-2174
    Change-Id: Ied64bf5774e3f9ba5d5e640d1f934eb3259e4173
    Signed-off-by: Thugutla sailakshmi <tsaila10@in.ibm.com>