usb: dwc3-msm: Add eud to MODULE_SOFTDEP

dwc3-msm driver often depends on EUD as an extcon provider. Add
the EUD module as a softdep to ensure it gets loaded first to avoid
needless probe deferrals.

Change-Id: I479515074bf81130fec6cab0e93d306e1c4c9587
Signed-off-by: Jack Pham <jackp@codeaurora.org>