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The client of ImageProcessor feeds ImageProcessor VideoFrame in
import mode. The underlying buffer of the fed VideoFrame can have
a different stride and size from the expectation of
ImageProcessor. The difference is critical in V4L2ImageProcessor.
It is necessary to reconfigure the v4l2 image processor driver by
VIDIOC_S_FMT with the stride and height of the fed VideoFrame.

Bug: 1033799
Test: ip_test --gtest_filter=NV12* on kukui
Change-Id: I73050718f6a95a1eaa3d9c7a60eeea1bc791f04e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2097857
Commit-Queue: Hirokazu Honda <hiroh@chromium.org>
Reviewed-by: Alexandre Courbot <acourbot@chromium.org>
Cr-Commit-Position: refs/heads/master@{#754835}