platform/x86: asus-nb-wmi: Add keymap entry for lid flip action on UX360

Add entry to WMI keymap for lid flip event on Asus UX360.

On Asus Zenbook ux360 flipping lid from/to tablet mode triggers
keyscan code 0xfa which cannot be handled and results in kernel
log message "Unknown key fa pressed".

Signed-off-by: Aleh <Filipovich&lt;aleh@appnexus.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>