UBI: Update comments to reflect UBI_METAONLY flag
UBI: Update comments to reflect UBI_METAONLY flag

This patch trivially updates code comments to reflect the addition of the
UBI_METAONLY flag - as discussed https://lkml.org/lkml/2014/10/29/764

Cc: Richard Weinberger <320bca71fc381a4a025636043ca86e734e31cf8b@nod.at>
Cc: f2fc8123700c95880a53d4a1576282f2ca68c4b0@kernel.org
Signed-off-by: Andrew Murray <40338b79d540ddaabc97c1a04fbf156d85f7b399@embedded-bits.co.uk>
Signed-off-by: Richard Weinberger <320bca71fc381a4a025636043ca86e734e31cf8b@nod.at>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs