HACK: usb: dwc3-am62: Fix spurious wake up

Enabling linestate wake up is causing spurious wake up
on deep sleep. Disable it till root caused.

Signed-off-by: Roger Quadros <rogerq@kernel.org>
Tested-by: Ravi Gunasekaran <r-gunasekaran@ti.com>
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>