Update git submodules

* Update docs/submodules/aai/esr-gui.git from branch 'master'
  to c54138edc1b392ed89f147270ad680014f0dd2d6
  - Automation adds index.rst
    
    Issue-ID: CIMAN-376
    Signed-off-by: Aric Gardner <agardner@linuxfoundation.org>
    Change-Id: Ia3fdff796592aeae0757c69198316aca39d33df1
    
1 file changed