drm/xe: Flush LSC untyped L1 dataport cache after rcs/ccs batches

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                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/gpu/drm/xe/instructions/xe_gpu_commands.h",
                        "drivers/gpu/drm/xe/xe_ring_ops.c"
                    ],
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