ARM: dts: msm: Pass USB connector type for sdxpoorwills

Driver registers extcon handle based upon fixed index
assigned to USB connector type. Hence pass USB connector
type and update extcon handle accordingly.

Change-Id: I4f6f89bcf1e8d76f5101310c91779cec6a470ac5
Signed-off-by: Hemant Kumar <hemantk@codeaurora.org>