Split getSurroundSound method in 2 methods.

Split getSurroundSound in:
getSurroundSound for formats supported by source android device
getReportedSurroundSound for formats reported by any connected sound
device like soundbar etc.

Bug: 177990551
Test: atest AudioPolicyManagerTestForHdmi
Change-Id: Iac811315049f0598c930afd75f069f058080dad4
diff --git a/services/audiopolicy/service/AudioPolicyService.cpp b/services/audiopolicy/service/AudioPolicyService.cpp
index 90ad81e..66bea8e 100644
--- a/services/audiopolicy/service/AudioPolicyService.cpp
+++ b/services/audiopolicy/service/AudioPolicyService.cpp
@@ -925,6 +925,7 @@
         case TRANSACTION_registerPolicyMixes:
         case TRANSACTION_setMasterMono:
         case TRANSACTION_getSurroundFormats:
+        case TRANSACTION_getReportedSurroundFormats:
         case TRANSACTION_setSurroundFormatEnabled:
         case TRANSACTION_setAssistantUid:
         case TRANSACTION_setA11yServicesUids: