android_media_Utils: update camera_jpeg_blob definition to match aidl.

- Also remove dependency on camera3.h header.

Bug: 229688810

Test: GCA (basic validity)
Test: DngCreatorTest#testRaw16JpegConsistency

Change-Id: I95e38adad3b6eeb71732d9cf9cb2c2c240b6b8bf
Signed-off-by: Jayant Chowdhary <jchowdhary@google.com>