u_data_ipa: Don't call USB3 specific APIs for USB2 controller

Currently driver is calling USB3 specific APIs for USB2 controller
for configuring endpoints which will fail. Hence add proper checks
so that not to call DWC3 USB3 controller specific apis.

Change-Id: Id6ed4e0b254695b93df21f806f04a6806fb7d775
Signed-off-by: Vijayavardhan Vennapusa <vvreddy@codeaurora.org>