Revert "audio: Don't build if TARGET_QCOM_AUDIO_VARIANT is set"

This reverts commit bcf038d54839370425322e66158d9cbeb2fe4165.
audio: Use project pathmap

Change-Id: I908f080105aad8ff686e409fd04ff730f09a86a4
audio: fix project pathmap

Change-Id: I500a0a406f62474e2dcf2982fa785a04a92ea592