ARM: dts: msm: Add USB device node to sdm855

Add the basic device nodes for the primary USB device for SDM855.
Enable it for RUMI using the emulation-specific PHY, while limiting
the max speed to high-speed and supporting peripheral-only.

Change-Id: I8da5daea952d7acea379eefe44961446cda31f6d
Signed-off-by: Jack Pham <jackp@codeaurora.org>