hal: reset a2dp encoder config when a2dp initialization

Reset a2dp encoder config when a2dp initialization to avoid
no sound after restarting audioserver during a2dp playback.

CRs-Fixed: 2098228
Change-Id: Ie57e35da7ec88566287f1956ec34d415df24caaa
diff --git a/hal/audio_extn/a2dp.c b/hal/audio_extn/a2dp.c
index 2103930..9ebc0f2 100644
--- a/hal/audio_extn/a2dp.c
+++ b/hal/audio_extn/a2dp.c
@@ -1038,6 +1038,7 @@
   a2dp.enc_sampling_rate = 48000;
   a2dp.is_a2dp_offload_supported = false;
   a2dp.is_handoff_in_progress = false;
+  reset_a2dp_enc_config_params();
   update_offload_codec_capabilities();
 }