Convert MP3Extractor to use AMediaFormat

Expand AMediaFormat with the required keys, and update the
meta<->message conversion helpers to translate the new keys.

Bug: 111407253
Test: manual, CTS
Change-Id: Ie2421191c4e101d73924fe6fa6ca452b69cf40f9
diff --git a/media/extractors/mp3/Android.bp b/media/extractors/mp3/Android.bp
index a3aeaca..1025c46 100644
--- a/media/extractors/mp3/Android.bp
+++ b/media/extractors/mp3/Android.bp
@@ -13,6 +13,7 @@
     shared_libs: [
         "liblog",
         "libmediaextractor",
+        "libmediandk",
         "libstagefright_foundation",
     ],