Merge 6.6.73 into android15-6.6-lts

GKI (arm64) relevant 3 out of 4 changes, affecting 10 files +73/-141
  950b6043 Revert "ovl: support encoding fid from inode with no alias" [1 file, +21/-25]
  d1c53de4 Revert "ovl: pass realinode to ovl_encode_real_fh() instead of realdentry" [4 files, +10/-12]
  1795ca65 Revert "ovl: do not encode lower fh with upper sb_writers held" [5 files, +42/-104]

Changes in 6.6.73
        Revert "ovl: support encoding fid from inode with no alias"
        Revert "ovl: pass realinode to ovl_encode_real_fh() instead of realdentry"
        Revert "ovl: do not encode lower fh with upper sb_writers held"
        Linux 6.6.73

Change-Id: I96f57fb756bae97244322905bd34848a4b6a836c
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>