ARM: dts: msm: disable UFS on MTP

UFS device detection is not stable on MTP with APQ8084 v1.1 chip
and currently there is no way to identify the MTP boards having
APQ8084 v1.1 chips hence disable UFS on all MTPs.

Change-Id: I5ca3d2bfeff964b4ea9af2d1a1a6d0be599cf82f
Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org>