Update git submodules

* Update build/soong from branch 'master'
  to f5531d2ed63e9c580140434f11a752a079cc6b8a
  - Add missing properties to android_test
    
    These are in the AndroidTest struct, and being exported by the AndroidMk
    functions, but aren't in the list given to blueprint.
    
    Test: add test_suites to an android_test, check Android-*.mk
    Change-Id: I1e46638755cbb579f28ed14638baad43fde5cb96