anv: Fix INTEL_DEBUG=bat on XeHP

anv: Fix INTEL_DEBUG=bat on XeHP

We no longer emit STATE_BASE_ADDRESS in every batch on XeHP, so the
decoder might not know what the various base addresses are if it's only
looking at a single batch.  Fortunately, they also never change, so we
can just emit them once here.

On earlier platforms, initializing them here should be harmless.  We'll
emit STATE_BASE_ADDRESS if we change them, which will update these.

Thanks to Iván Briano for catching this.

Fixes: 8831cb38aa9 ("anv: Stop updating STATE_BASE_ADDRESS on XeHP")
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/16287>