The hotkey enabling code is being used by *_setup_keyboard and also by
*_resume.

This patch creates a new function called toshiba_acpi_enable_hotkeys to
be used by these two functions to avoid duplicating code.
Signed-off-by: NAzael Avalos <coproscefalo@gmail.com>
Signed-off-by: NDarren Hart <dvhart@linux.intel.com>