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Add V4L2_PIX_FMT_JPEG format support for V4L2 JEA. This format is for
complete jpeg from hardware encoder. This CL checks if the devices
supports the format and set related controls and process exif part.

Bug: b:141516308
Test: On Kukui
./jpeg_encode_accelerator_unittest --gtest_filter=*Dma* \
--yuv_filenames=bali.yuv:640x368
Pass CtsCameraTestCases
On Dru
./jpeg_encode_accelerator_unittest --yuv_filenames=bali.yuv:640x368

Change-Id: Ib5c03df9d033c25605f7a4f27e2ae8528d707311
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1783691
Commit-Queue: Hsu Wei-Cheng <mojahsu@chromium.org>
Reviewed-by: Ricky Liang <jcliang@chromium.org>
Reviewed-by: Wei Lee <wtlee@chromium.org>
Cr-Commit-Position: refs/heads/master@{#814496}