anv: Switch to new debug message helpers

Signed-off-by: Yevhenii Kolesnikov <yevhenii.kolesnikov@globallogic.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Part-of: <mesa/mesa!10318>
180 jobs for !29 with impl/VK_EXT_debug_utils in 40 minutes and 30 seconds (queued for 17 seconds)
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