AMediaDataSource: add getAvailableSize callback

Bug: 109928575
Test: android.media.cts.NativeDecoderTest#testExtractorCachedDurationNative
Change-Id: I77af46e58bd81bc24a8682d6d2a48646c5f13e8f
diff --git a/media/ndk/libmediandk.map.txt b/media/ndk/libmediandk.map.txt
index e933376..224329a 100644
--- a/media/ndk/libmediandk.map.txt
+++ b/media/ndk/libmediandk.map.txt
@@ -143,6 +143,7 @@
     AMediaDataSource_setUserdata; # introduced=28
     AMediaDataSource_newUri;      # introduced=29
     AMediaDataSource_close;       # introduced=29
+    AMediaDataSource_setGetAvailableSize; # introduced=29
     AMediaDrm_closeSession;
     AMediaDrm_createByUUID;
     AMediaDrm_decrypt;