Move basic aaudio tests to presubmit.

The tests have been passed in postsubmit for a while. Move the tests to
presubmit so that we can avoid test failure when running TH.

Bug: 244214753
Test: atest --test-mapping frameworks/av/media/libaaudio:presubmit
Test: atest --test-mapping frameworks/av/media/libaudioclient:presubmit
Test: atest --test-mapping frameworks/av/media/libaudiofoundation:presubmit
Test: atest --test-mapping frameworks/av/media/libaudiohal:presubmit
Test: atest --test-mapping frameworks/av/media/libaudioprocessing:presubmit
Test: atest --test-mapping frameworks/av/services/audioflinger:presubmit
Change-Id: I8411bf855750a45d6b5e35365b2e8f102e978f7a
diff --git a/services/audioflinger/TEST_MAPPING b/services/audioflinger/TEST_MAPPING
index 9aff137..5d3fb0a 100644
--- a/services/audioflinger/TEST_MAPPING
+++ b/services/audioflinger/TEST_MAPPING
@@ -1,5 +1,5 @@
 {
-  "postsubmit": [
+  "presubmit": [
     {
       "name": "CtsNativeMediaAAudioTestCases",
       "options" : [