scsi: ufs-msm: rename all entities from "msm" to "qcom"

Since UFS is not used strictly in a specific set of targets but rather
its code is applicable to MSM, APQ, IPQ etc, everywhere where
there is a use of "msm" should be replaced with "qcom".

Change-Id: Ib96259bab6de506a40876c1c121a12bb75b655c1
Signed-off-by: Yaniv Gardi <ygardi@codeaurora.org>