Compatibility fix for fdk-aac >= 1.5
Compatibility fix for fdk-aac >= 1.5

In fdk-aac 1.5, pseudo audio object types has been removed. In order
to keep bluealsa code compatible with older fdk versions, we need to
add compatibility patch on our own.

Fixes #20

Arkq/bluez-alsa,guillaumezin/bluez-alsa,Arkq/bluez-alsa,guillaumezin/bluez-alsa,Arkq/bluez-alsa