ultrahdr: unit test for encode api0

This test checks if luma stride, chroma stride, chroma_data, data
fields of p010 raw struct have expected effects on the compressed
jpegr data.

Bug: 283495487
Test: ./libultrahdr_test

Change-Id: Ie5c2e04181c08bb4ea7b2ba4cfcb56b0acc661f5