dwc3-msm: Add module param to override USB speed

This change adds module param to override USB speed to force
USB enumeration into desired USB speed in USB device mode.

Change-Id: I01a4d1a6e3346fc340bca955c3dc3c976f2f8972
Signed-off-by: Mayank Rana <mrana@codeaurora.org>
1 file changed