ARM: dts: msm: add alias id for UFS host controllers on MSMSKUNK

This change adds the alias ids for UFS host controllers on MSMSKUNK,
this will help the UFS driver to know the serial number of UFS host
controllers on MSMSKUNK.

Change-Id: Ia7cf750d89cba5afc4fdf3962a4244b33de44260
Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org>