ARM: dts: msm: specify the PCIe PHY version for mdmcalifornium

PCIe bus driver needs to know which PCIe PHY is being used
on mdmcalifornium. Thus, update PCIe node in devicetree
with the PCIe PHY version.

Change-Id: Ic72330750baeee65d076105f2189086572077bdb
Signed-off-by: Tony Truong <truong@codeaurora.org>