speechd_config: add libao to suggested values in configure_basic_settings
speechd_config: add libao to suggested values in configure_basic_settings

This patch adds libao to the array of suggested audio output methods
to avoid errors when entering libao during spd-conf.

Reviewed-by: William Hubbs <54cd4f6a53c83578a2ea0a02eb065faed9769f8e@gmail.com>

razr/speechd,razr/speechd,razr/speechd,razr/speechd