toshiba_acpi: Additional hotkey scancodes

Appart from reporting hotkeys, the INFO method is used
as a system wide event notifier for hardware or
software changes.

This patch adds additional "events" to the keymap list,
ignored by now, until we find them a good use.

Signed-off-by: Azael Avalos <coproscefalo@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>