ocfs2: trivial fix for s/migrate/migration/ in dlmrecovery.c logging

in dlmrecovery.c:1121, replace 'migrate' to 'migration' to keep the consistency
by comparing to other lines with the similar log info in the same file.

Signed-off-by: Jeff Liu <jeff.liu@oracle.com>
Signed-off-by: Joel Becker <joel.becker@oracle.com>