[Quantal SRU] Fixed the duplicated ACPI video devices issue

[AceLan Kao]

SRU Justification:

Impact:
There will be no /sys/class/backlight/acpi_video0 if there are duplicate
ACPI video bus devices.
In this case, user can't adjust the brightness through ACPI interface.

Fix:
This issue was been fixed after v3.6-rc1,
by bisecting the upstream kernel and got this commit.

Test:
Tested on Dell's new AIO machine.

Bob Moore (1):
  ACPICA: Add support for multiple notify handlers

 drivers/acpi/acpica/acglobal.h |   3 +-
 drivers/acpi/acpica/aclocal.h  |  13 +-
 drivers/acpi/acpica/acobject.h |   9 +-
 drivers/acpi/acpica/evmisc.c   | 185 +++++++----------
 drivers/acpi/acpica/evxface.c  | 440 ++++++++++++++---------------------------
 drivers/acpi/acpica/exdump.c   |  25 ++-
 drivers/acpi/acpica/utdelete.c |  24 ++-
 drivers/acpi/acpica/utglobal.c |   4 +-
 include/acpi/actypes.h         |   4 +
 9 files changed, 266 insertions(+), 441 deletions(-)

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1.8.1.2