UPSTREAM: [media] uvcvideo: Support super speed endpoints

UPSTREAM: [media] uvcvideo: Support super speed endpoints

Compute the maximum number of bytes per interval using the burst and
multiplier values for super speed endpoints.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
(cherry picked from commit 6fd90db8df379e215f2d495d0b4f3d2553c00277)

BUG=chrome-os-partner:18460
TEST=None

Change-Id: I0ad74ce6edb7316e51a7f5fb7f1d41b4f6e3880c
Reviewed-on: https://gerrit.chromium.org/gerrit/47318
Tested-by: Julius Werner <jwerner@chromium.org>
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
Reviewed-by: Pawel Osciak <posciak@chromium.org>
Commit-Queue: Julius Werner <jwerner@chromium.org>