winex11/wintab: Fix values for lcSys* and lcOut*.

winex11/wintab: Fix values for lcSys* and lcOut*.

Testing using the Wacom wintab32 (from driver version 6.3.37-3) on
Windows 10, it appears that the values for lcOut* were likely
accidentally mixed up with the values for lcSys*. The lcSys* values are,
according to the documentation, supposed to specify the extent of the
screen mapping area for the cursor, wheras lcOut* simply specifies the
output coordinate space for the given context. There is no logical
reason I'm aware of for why lcOut* would have different default values
from lcIn*, and in testing Wacom wintab32 defaults lcOut* to match
lcIn*.

In addition, lcSysExt* should use SM_C*VIRTUALSCREEN instead of
SM_C*SCREEN, to handle multi-monitor setups properly. Setting lcSysExt*
to these values works even if the tablet is mapped to a subset of this
area.

After this change, PaintTool SAI 2 appears to work out of the box. Other
wintab clients I tested appear to be unaffected (such as the Wintab SDK
demos and Adobe Photoshop CS2.)

Signed-off-by: John Chadwick <john@jchw.io>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>