MAINTAINERS: Add missing Toshiba devices and add myself as maintainer

Add the missing toshiba_bluetooth and toshiba_haps entries and add
myself as their maintainer.

Also add the Maintainers entry for toshiba_acpi driver and change its
status to maintained.

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