HID: hid-microsoft: Add support for scrollwheel and special keypad keys

The Microsoft Office keyboard has a scrollwheel as well as some special keys
above the keypad which are handled through the custom MS usage page, this
commit adds support for these.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>