linux-yocto/5.15: aufs: fixes and optimization

linux-yocto/5.15: aufs: fixes and optimization

Integrating the following commit(s) to linux-yocto/5.15:

    b98d189df02c aufs: bugfix, umount passes NULL to ->parse_monolithic()
    13b883cbbbd9 aufs standalone: cosmetic, missing copyright sentence
    21f8b0d81898 aufs: 5.15.5-20220117 ---> 5.15.5-20220221
    6199fd896645 aufs: tiny, headers after fs_context
    8ddb40e31c29 aufs: fs_context 7/7, finally remount
    69035f71c6fd aufs: fs_context 6/7, now mount
    bc841b970697 aufs: fs_context 5/7, parse all other mount options
    435188053da2 aufs: fs_context 4/7, parse xino options
    9af1f1825cbd aufs: fs_context 3/7, parse the branch-management options
    1c05eb767f8c aufs: fs_context 2/7, parse "br" mount option
    a8488f603134 aufs: fs_context 1/7, skelton of the new shceme
    8e32e0015564 aufs: pre fs_context, convert a static flag to a macro
    f90cb4144aec aufs: pre fs_context, support the incomplete sb and sbinfo case
    948762ef859c aufs: pre fs_context, convert the type of alloc_sbinfo()
    77151a08776b aufs: 5.15.5-20211129 ---> 5.15.5-20220117
    2539adbbbe1e aufs: 5.14-20211018 ---> 5.15.5-20211129
    7d32b25193c4 aufs: for v5.15-rc1, sync_inode() is gone
    66ec0c509225 aufs: for v5.15-rc1, new param 'rcu' for ->get_acl()
    69709dc518cd aufs: for v5.15-rc1, no mand-lock anymore
    ada8fe9543e5 aufs: 5.14-20210906  ---> 5.14-20211018
    b77f7f3f394a Revert "aufs: adjust to v5.15 fs changes"

Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>