ACPI: video: Use str_yes_no() helper in acpi_video_bus_add()

Use the str_yes_no() helper function instead of hard-coded strings.

Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Link: https://patch.msgid.link/20250211104532.699124-1-thorsten.blum@linux.dev


[ rjw: Changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>