[Backport 10.x.x] Fix issue with history buffer allocation for AOVs when the request does not come in first frame.#4421

sebastienlagarde merged 3 commits into10.x.x/releaseUnity-Technologies/Graphics:10.x.x/releasefrom

HDRP/fix_aov_history_10_xUnity-Technologies/Graphics:HDRP/fix_aov_history_10_xCopy head branch name to clipboard