scsi: ufs-qcom: add QUniPro hardware support

New revisions of UFS host controller supports the new UniPro
hardware controller (referred as QUniPro). This patch adds
the support to enable this new UniPro controller hardware.

Change-Id: Iccbcc38c36e6d9b9fcbb5c7fd7a3e3326c1c4ce0
Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org>
[subhashj@codeaurora.org: resolved trivial merge conflicts]
Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org>
[cang@codeaurora.org: Resolved trivial merge conflicts]
Signed-off-by: Can Guo <cang@codeaurora.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>