qcom_defconfig: enable USB

Enable support for the DWC3 USB controller and required dependencies for
Qualcomm boards, specifically the DB845c:
* IOMMU / SMMU
* USB high-speed PHYs
* Mass storage and ACM gadgets

Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
1 file changed