platform/x86: thinkpad_acpi: add mapping for new hotkeys

platform/x86: thinkpad_acpi: add mapping for new hotkeys

BugLink: http://bugs.launchpad.net/bugs/1705169
The T470, X270 emits new hkey events in the 0x1311 - 0x1315 range.
According to the user manual they should launch a user selected
favorite application (star icon, 0x1311), snipping tool (0x1312,
currently ignored), enable/disable bluetooth (0x1314) and open they
keyboard settings (0x1315).

The third nibble (0xf00) is used to differentiate between the original
hotkeys, the adaptive keyboard codes and the new, additional ones.

Signed-off-by: Christian Kellner <ckellner@redhat.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
(cherry picked from commit 696c6523ec8f2a8f30f3dffef7e382f0fe5c2010)
Signed-off-by: Alex Hung <alex.hung@canonical.com>
Acked-by: Colin King <colin.king@canonical.com>
Acked-by: Hui Wang <Wang <hui.wang@canonical.com>
Signed-off-by: Kleber Sacilotto de Souza <kleber.souza@canonical.com>