Resume button events for pucks

wcmBTNChannel was statically assigned to PAD_CHANNEL by commit 1f9bf45b, which
excluded button events for CURSOR tools. This patch allows usbParseBTNEvent
to process button events for both CURSOR and PAD tools.

wcmBTNChannel is removed from wcmUSBData since we do not need it anymore.

Signed-off-by: Ping Cheng <pingc@wacom.com>
Reviewed-by: Jason Gerecke <killertofu@gmail.com>
add support for 0x10d

It is a Wacom device found in Fujitsu Lifebook T902.

Signed-off-by: Stephan Frank <sfrank@cs.tu-berlin.de>
Acked-by: Ping Cheng <pingc@wacom.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Jason Gerecke <killertofu@gmail.com>