LU-18231 obd: change obd_abort_mdt_recovery into OBDF_ABORT_MDT_RECOVERY

LU-18231 obd: change obd_abort_mdt_recovery into OBDF_ABORT_MDT_RECOVERY

Change the use of the odb_abort_mdt_recovery bitfield into a bit in
the ofd_flags bitmap and use atomic bit set/clear/test
operations on it.
No logical changes to the code and no changes to locking.

Test-Parameters: trivial
Signed-off-by: Ronnie Sahlberg <rsahlberg@whamcloud.com>
Change-Id: I827d8eb32b9dc79fb16d76f33bb7169abf228e8b
Reviewed-on: https://review.whamcloud.com/c/fs/lustre-release/+/56417
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>
Reviewed-by: Timothy Day <timday@amazon.com>
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>