scsi: ufs: Dont send abort command to w-luns

As per spec, w-luns can only handle certain set of commands.
Table 10-58 lists down the commands that can be handled by
each of the w-luns and abort is not one of them.

Hence do not send abort to a w-lun.

CRs-fixed: 2234578
Change-Id: I523d2bc8860ac1d9decff82e66a1ffe97a198e52
Signed-off-by: Asutosh Das <asutoshd@codeaurora.org>