AudioPolicyManager:Fix CTS testGaplessMP3AudioTrackOffload fail

getDirectPlaybackSupport return AUDIO_DIRECT_OFFLOAD_GAPLESS_SUPPORTED,
but getOffloadSupport return AUDIO_OFFLOAD_NOT_SUPPORTED cause test
fail.
solution: not return offload support when offloadPossible is false.

Test: atest AudioTrackOffloadTest#testGaplessMP3AudioTrackOffload
AudioManagerTest#testAdjustUnmuteNotificationInVibrate
AudioManagerTest#testStreamTypeAliasChange
Bug: 304449830

Change-Id: Ia68e70b98469e5c35b74e20e062519a4eb91d592
diff --git a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
index cc32aec..c201453 100644
--- a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
+++ b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
@@ -4328,8 +4328,8 @@
             if (!mAvailableOutputDevices.containsAtLeastOne(curProfile->getSupportedDevices())) {
                 continue;
             }
-            if ((curProfile->getFlags() & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD)
-                        != AUDIO_OUTPUT_FLAG_NONE) {
+            if (offloadPossible && ((curProfile->getFlags() & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD)
+                        != AUDIO_OUTPUT_FLAG_NONE)) {
                 if ((directMode & AUDIO_DIRECT_OFFLOAD_GAPLESS_SUPPORTED)
                         != AUDIO_DIRECT_NOT_SUPPORTED) {
                     // Already reports offload gapless supported. No need to report offload support.