scsi: ufs: Honor device quirks and spm level for Link state

With the 'commit ed2d1adb ("scsi: ufs: Add support for turning
off UFS power supplies")' the device spm level and the device quirk
to keep link always in H8 state are getting override if the
vccq-pwr-collapse-sup property set.

For e.g, In-general to keep link in off state during suspend
this vccq-pwr-collapse-sup flag enabled but at the same time if we
would to keep the link in H8 state only for a specific vendor using
the device quirk this change is not allowing. As it overrides the
spm level.

So removing logic which overrides spm-level and removing
dependency on vccq-pwr-collapse-sup flag.

Change-Id: I005fcc306b07f393ca38e595603348a2f6e6837e
Signed-off-by: Veerabhadrarao Badiganti <vbadigan@codeaurora.org>