ralink: fix USB host function for Intenso M2M

The ubootloader of the M2M sets the reset bits for
both USB device and USB host during initialization
(to save a few mA of power during boot).

However, for the usb<->sata bridge to be properly
detected, it is necessary to clear both reset bits
as otherwise the kernel logs will just be filled
with:

usb 1-1: device descriptor read/64, error -145
...

Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>

SVN-Revision: 44248