usb: f_gsi: Update connection parameters for GSI channels

Stage 1 SMMU enablement on IPA requires that the USB
driver pass physical and virtual addresses to IPA for
addresses that GSI hardware will write to. Update the
connection params for GSI channels to pass this info
to IPA driver.

Change-Id: Ibeedeef900b069b3a113b2daabf461797f28287b
Signed-off-by: Devdutt Patnaik <dpatnaik@codeaurora.org>