Update git submodules

* Update system/keymaster from branch 'master'
  to 0c67863a0d4c13627c12e4c9af2445983e8d0612
  - Moved contents of clang_cflags into cflags
    
    Test: Treehugger
    Bug: 226636335
    Change-Id: Id30b0f9142e09667bcfb98f88ede172233804ae4
    
1 file changed