HID: bpf: add in-tree HID-BPF fix for the XPPen Artist 16

Same problem than the Artist 24: the second button on the pen is treated
like an eraser.
But the problem is even worse this time. There is an actual eraser at
the tail of the pen.

The compensation of the coordinates was done by Martin
Signed-off-by: Martin Sivak <mars@montik.net>
Link: https://lore.kernel.org/r/20240410-bpf_sources-v1-3-a8bf16033ef8@kernel.orgReviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>