usb: Add skip frames after stream on

Some devices may output invalid jpeg after stream on.
We have to skip it.

BUG=b:24674340
TEST=run arc_camera3_test

Change-Id: I87bd3484c67ed7b2ef073b1413d428d01d367157
Reviewed-on: https://chromium-review.googlesource.com/502950
Commit-Ready: Heng-ruey Hsu <henryhsu@google.com>
Tested-by: Heng-ruey Hsu <henryhsu@google.com>
Reviewed-by: Ricky Liang <jcliang@chromium.org>
3 files changed