panfrost: Dirty track batch masks

Since 5d187e9c ("panfrost: Add helpers to set batch masks"), we have common
helpers to set the colour and depth/stencil batch masks. Rather than set the
masks in various Midgard/Bifrost specific paths, set them generically based on
the finer dirty tracking. This lets us share the logic with Valhall.

Signed-off-by: Alyssa Rosenzweig <alyssa@collabora.com>
Part-of: <!15956>
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