LU-15544 ldiskfs: SUSE 15 SP4 kernel 5.14.21 SUSE

LU-15544 ldiskfs: SUSE 15 SP4 kernel 5.14.21 SUSE

Updated patch series for SUSE 15 SP4 kernel 5.14.21 based on 5.10

Linux commit v5.14-rc2-19-g188c299e2a26
   ext4: Support for checksumming from journal triggers
Results in ext4_journal_get_write_access() having 4 arguments.
This change provides a compat wrapper for older kernels.

Linux commit v5.12-rc4-7-g471fbbea7ff7
  ext4: handle casefolding with encryption
This change impacts directory entry hash calculation and impacts
EXT4_DIR_REC_LEN and EXT4_DIR_ENTRY_LEN macros which now requires
the inode parent dir's inode. Similarly ext4fs_dirhash() also
takes the inode parent dir's inode.
This changes provides a compat wrapper for ext4fs_dirhash
to support older kernels.

Patches dropped due to upstream ext4 landings:
  linux-5.9/ext4-simple-blockalloc.patch
  base/ext4-projid-xattrs.patch
  linux-5.8/ext4-enc-flag.patch

Test-Parameters: trivial
HPE-bug-id: LUS-10744
Signed-off-by: Shaun Tancheff <shaun.tancheff@hpe.com>
Change-Id: Ic50227eaa231e2f1e98f4a7c9e5838e3303cbdf6
Reviewed-on: https://review.whamcloud.com/c/fs/lustre-release/+/46504
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: Jian Yu <yujian@whamcloud.com>