Update git submodules

* Update trusty/kernel from branch 'master'
  to 8b9f0e12e4e8dca7ab1033f0b478855e3d36e032
  - [lib][trusty] Don't print backtrace twice
    
    Change-Id: I11ab3abee98419389332a656324bd41d8fc75643
    
1 file changed