audio: enable AAC offload

Bug: 8174410.
Change-Id: I343a35b90a2b21ea7954856ac7f73b9f5a07e0f2
diff --git a/hal/audio_hw.c b/hal/audio_hw.c
index 404f17c..24cfaf9 100644
--- a/hal/audio_hw.c
+++ b/hal/audio_hw.c
@@ -127,8 +127,8 @@
 
 static bool is_supported_format(audio_format_t format)
 {
-    if (format == AUDIO_FORMAT_MP3 /*||
-        format == AUDIO_FORMAT_AAC */)
+    if (format == AUDIO_FORMAT_MP3 ||
+            format == AUDIO_FORMAT_AAC)
         return true;
 
     return false;