hal: Fix audio_event_type_t enum ordering

AUDIO_EVENT_SCREEN_STATUS_CHANGED was added in a previous change
in the middle of the enum which led to erroneous logs. This change
resolved that by moving it to the end of the enum.

Change-Id: Ic01e8daaf037556886fbd5bc35491c034385a473
diff --git a/hal/audio_extn/soundtrigger.c b/hal/audio_extn/soundtrigger.c
index 1e28b86..a175b83 100644
--- a/hal/audio_extn/soundtrigger.c
+++ b/hal/audio_extn/soundtrigger.c
@@ -84,9 +84,9 @@
     AUDIO_EVENT_CAPTURE_STREAM_INACTIVE,
     AUDIO_EVENT_CAPTURE_STREAM_ACTIVE,
     AUDIO_EVENT_BATTERY_STATUS_CHANGED,
-    AUDIO_EVENT_SCREEN_STATUS_CHANGED,
     AUDIO_EVENT_GET_PARAM,
-    AUDIO_EVENT_UPDATE_ECHO_REF
+    AUDIO_EVENT_UPDATE_ECHO_REF,
+    AUDIO_EVENT_SCREEN_STATUS_CHANGED
 } audio_event_type_t;
 
 typedef enum {