ksmbd: don't align last entry offset in smb2 query directory

ksmbd: don't align last entry offset in smb2 query directory

BugLink: https://bugs.launchpad.net/bugs/1963890
[ Upstream commit 04e260948a160d3b7d622bf4c8a96fa4577c09bd ]

When checking smb2 query directory packets from other servers,
OutputBufferLength is different with ksmbd. Other servers add an unaligned
next offset to OutputBufferLength for the last entry.

Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Paolo Pisati <paolo.pisati@canonical.com>