usb: ssusb-qmp: Do not enable autonomous mode in high speed mode

Upon high speed bus suspend qmp phy is generating lfps rx term
interrupt when ss phy autonomous mode is enabled. This is causing
controller to come out of low power mode and it never goes back to
lowe power mode. Hence disable autinomous mode for high speed connecion.

Change-Id: I227ec1978e05d4a5ed7772a6b329724b3a74a266
Signed-off-by: Hemant Kumar <hemantk@codeaurora.org>
Signed-off-by: Azhar Shaikh <azhars@codeaurora.org>