Update git submodules

* Update platform/manifest from branch 'master'
  to a938c0b0706a6f5680d2a07b269df84b09b1b463
  - DO NOT MERGE ANYWHERE - Update master to use main branch.
    
    Bug: b/289400079
    Change-Id: If380fbba52cf2f288b7d2f8f90affcafa9f14475
    
1 file changed