As we loop on ReadFile success we may read multiple reports at once, but
we never reset buttons in the enumeration params. The pressed buttons
are returned by HidP_GetUsagesEx and any other button must be cleared.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=52387Signed-off-by: Rémi Bernon <rbernon@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>