cherry-pick commits for Wacom support

[Erik van Konijnenburg]

New Wacom Bamboo tablets are not recognized in Ubuntu;
see https://bugs.launchpad.net/ubuntu/+source/linux/+bug/568064.
This is still the case in Precise Pangolin with linux-image-3.2.0-24-generic.

To fix this, could you cherry-pick the following commits from stable
3.3.4?

    6e8ec5379c7ab9a57190e23af173aee74f88e54a Input: wacom - cleanup feature report for bamboos
    fc72bf758f943fbc5c0d9dd14575b91996513c77 Input: wacom - remove unused bamboo HID parsing
    428f85884bb4a88737e5fa76535ede06a33fe162 Input: wacom - add some comments to wacom_parse_hid
    c5981411f60c31f0dff6f0f98d2d3711384badaf Input: wacom - relax Bamboo stylus ID check
    4134361af6e099e5f477663fed1d49f0cf29eb4f Input: wacom - read 3rd gen Bamboo Touch HID data
    73149ab8433c0ade5a4f79b137af2a081e8a5d13 Input: wacom - 3rd gen Bamboo P&Touch packet support
    5a6c865d9861efdd066db1b5da491ebc2ff5926d Input: wacom - ignore unwanted bamboo packets
    f6b7efc162caed555264cd73cd00103701fddbc0 HID: wacom: Move parsing to a separate function
    78761ff9bc4e944e0b4e5df1e7eedcfdbb1a9a1a HID: wacom: Initial driver for Wacom Intuos4 Wireless (Bluetooth)
    803296b678a43005e3bc0aaa1951d211bd76a054 Input: wacom - add support for Cintiq 24HD
    246835fccdc0dadeda20cd51f7ec868031fa8142 Input: wacom - add LED support for Cintiq 24HD
    68513a4c5fe68938350cf2c56d97946e49f014e1 Input: wacom - add missing LEDS_CLASS to Kconfig
    19d57d3a145e94349abf805eed2316ef720d86c2 Input: wacom - fix 3rd-gen Bamboo MT when 4+ fingers are in use

They are listed oldest-first and apply cleanly to stable 3.2.16 and to
ubuntu-precise/master-next.

I tested this with Krita and a Wacom Bamboo CTH-470.  Touchpad, stylus
and pressure sensor seem OK; I haven't tested multi-touch behaviour.

The above list is based on the stable log

    git log --format=oneline --grep=wacom -i v3.2.16..v3.3.4 
    git log --format=oneline v3.2.16..v3.3.4 -- \
	drivers/hid/hid-wacom.c \
	drivers/input/tablet/wacom_sys.c \
	drivers/input/tablet/wacom_wac.c \
	drivers/input/tablet/wacom_wac.h

with commits that touch anything but Wacom dropped:

    217c8b2b1978aa4a02ce040a99c59ed3b6418fe5 HID: wiimote: fix invalid power_supply_powers call
    d7cb3dbd10c09081fafd05fcbef590ce04e402ff HID: wacom: Fix invalid power_supply_powers calls
    35b4c01e29bdd9632dabf9784ed3486333f00427 power_supply: add "powers" links to self-powered HID devices
    73db88137bc732d01b615af9a9cdb24f3e47e78d power_supply: add scope properties to some self-powered HID devices
    08642e7c52cf43616821520828e504bc717e54a6 USB: convert drivers/input/* to use module_usb_driver()


Thanks,
Erik