audio: Add support to enable audio over bg

Add support for BG sound card. Add changes to send BG
codec cal stored in ACDB.

Bug: 73666907
Test: Compile test for 8974 platform, manual test for audio
playback/capture on BG.

Change-Id: I425224efdc2e3d43662f4d4bd521c436daa40ee9
diff --git a/hal/acdb.h b/hal/acdb.h
index 24dcb8f..e6410d6 100644
--- a/hal/acdb.h
+++ b/hal/acdb.h
@@ -33,6 +33,7 @@
 typedef int  (*acdb_init_t)();
 typedef void (*acdb_send_audio_cal_t)(int, int);
 typedef void (*acdb_send_voice_cal_t)(int, int);
+typedef int (*acdb_get_audio_cal_t) (void *, void *, uint32_t*);
 typedef int (*acdb_reload_vocvoltable_t)(int);
 typedef int (*acdb_send_gain_dep_cal_t)(int, int, int, int, int);
 typedef int (*acdb_send_custom_top_t) (void);