Update git submodules

* Update frameworks/support from branch 'androidx-master-dev'
  to c19a44147515bcc4404409e27db5de4e6e9aa73c
  - Merge "Removing files from master branch, pointing README to androidx-main" into androidx-master-dev
  - Removing files from master branch, pointing README to androidx-main
    
    Bug: 175313425
    
    Change-Id: Ie14580bf949f225c6b11f1009df1fa419e14748a
    
1 file changed