Sync ACPICA with Intel's version 20141107.

Sync ACPICA with Intel's version 20141107.

* Support ASL+, which is an extension to ASL supporting C-style operators
  and expressions.

  Legacy ASL:
        If (LOr (LOr (LEqual (And (R510, 0x03FB), 0x02E0), LEqual (
            And (R520, 0x03FB), 0x02E0)), LOr (LEqual (And (R530, 0x03FB),
            0x02E0), LEqual (And (R540, 0x03FB), 0x02E0))))
        {
	    ...
	}

  ASL+:
        If (((R510 & 0x03FB) == 0x02E0) ||
            ((R520 & 0x03FB) == 0x02E0) ||
            ((R530 & 0x03FB) == 0x02E0) ||
            ((R540 & 0x03FB) == 0x02E0))
        {
	    ...
	}

* Updates of the GPIO operation region handler interface.

* Various other changes.

For a more detailed list, please see sys/contrib/dev/acpica/changes.txt.