evdevtouch: Make it work with am335x

The driver for the resistive touchscreen of these boards tends to report
ABS limits 0..4095 even tough it never sends coordinates outside a certain
range (e.g. approximately 165..4016 for X). This breaks the mapping of
hardware coordinates to screen space. Apply a workaround to make it
work properly.

Change-Id: I3eb5d76002acba1972061f3add44d797349c8ec8
Reviewed-by: Andy Nichols <andy.nichols@digia.com>
Rename private viewOptions to viewOptionsV1

Renaming of the private implementation of viewOptions to viewOptionsV1
so that future updates of QStyleOptionViewItem can be easily integrated
in the code with a simple search/replace.

Task-number: QTBUG-1180
Change-Id: I18f876a435417717fa0d759bb302a7c6059daf80
Reviewed-by: Stephen Kelly <stephen.kelly@kdab.com>