Update git submodules

* Update system/core from branch 'main'
  to e77a69d0b16a56e7823174b6e80ad8afc8f833f5
  - Merge "No longer require root for PermissiveMteTest" into main
  - No longer require root for PermissiveMteTest
    
    We can now read tombstones as shell user
    
    Change-Id: I2371360e87dc186f37c2d13ebae28b57abe76845
    
1 file changed