[PATCH] Adapt last Touchscreen Changes from GTA02 to GTA01

[Andy Green]

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Somebody in the thread at some point said:

| I have tested the kernel with the patch applied with the filters
| disabled and also with them enabled. When the filters are active I
| still receive  some misplaced up events but much less (the raster
| terminal keyboard is usable).

Great, glad the filters are helping on GTA01 as well.  Sent this on
andy-tracking.

If it's only single up events that can become inaccurate as the pressure
is lifted, we could just lie about the coordinate associated with the
"up", ie, use the last issued coordinate if we don't already.

- -Andy
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