Update git submodules

* Update platform/frameworks/base from branch 'master'
  to 78bc18e26b1a48c2e87325ecba3148f8a7bbc6f9
  - Merge "Allow a list of configs to be sent for enterprise slice"
  - Allow a list of configs to be sent for enterprise slice
    
    Allow a list of configs to be sent for enterprise slice
    Allow device owner to set enterprise slice config
    Allow enterprise apn to be configured by profile owner
    
    Bug: 217365439
    Bug: 222723840
    Test: ran CTS tests
    Merged-In: I82c159843d0806cbfc5eea602fbd0304e7ff04ac
    Change-Id: I82c159843d0806cbfc5eea602fbd0304e7ff04ac