LU-17248 kernel: wait for pages under writeback for bdev

LU-17248 kernel: wait for pages under writeback for bdev

Use a better version of kernel patch instead of
just adding SB_I_STABLE_WRITES flag to bdev superblock.
We don't need to wait for page writeback for all block devices,
even for those don't require stable_page.

Test-Parameters: trivial
Fixes: 5968bc3954 ("LU-17248 kernel: add SB_I_STABLE_WRITES to bdev sb flag")
Signed-off-by: Li Dongyang <dongyangli@ddn.com>
Change-Id: I20cfa33c4ef45b10e6a732e325698c6b1b00bc79
Reviewed-on: https://review.whamcloud.com/c/ex/lustre-release/+/53001
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>