Define AUDIO_USAGE_ASSISTANT in list of audio attributes usage

This change was autogenerated from an update in
  hardware/interfaces/audio/common/2.0/types.hal
with script
  hardware/interfaces/update-base-files.sh

Test: make
Bug: 30947943
Change-Id: I703b30e9a55299a0db84613361af537aa7d7c599
diff --git a/audio/include/system/audio-base.h b/audio/include/system/audio-base.h
index df72b62..d5884cf 100644
--- a/audio/include/system/audio-base.h
+++ b/audio/include/system/audio-base.h
@@ -346,8 +346,9 @@
     AUDIO_USAGE_ASSISTANCE_SONIFICATION = 13,
     AUDIO_USAGE_GAME = 14,
     AUDIO_USAGE_VIRTUAL_SOURCE = 15,
-    AUDIO_USAGE_CNT = 16,
-    AUDIO_USAGE_MAX = 15, // (CNT - 1)
+    AUDIO_USAGE_ASSISTANT = 16,
+    AUDIO_USAGE_CNT = 17,
+    AUDIO_USAGE_MAX = 16, // (CNT - 1)
 } audio_usage_t;
 
 enum {