ocfs2: Add comment about orphan scanning
ocfs2: Add comment about orphan scanning

Add a comment that explains the reason as to why orphan scan scans all the slots.

Signed-off-by: Sunil Mushran <71202349b6bab84fd697c8fc05379fc0e6724c25@oracle.com>

KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas