Update git submodules

* Update frameworks/libs/net from branch 'master'
  to 8e555572f01547fc2928cdf86d7ecec0dd0db3ac
  - Merge "Support IPv4/6 address type in Struct."
  - Support IPv4/6 address type in Struct.
    
    Bug: 163492391
    Test: atest NetworkStaticLibTests
    Change-Id: I17a753ea495f24d186b69083923a71a7ebccdc7b
    
1 file changed