MediaPlayer2: build static libs for some components

Test: compiles
Bug: 63934228
Change-Id: I1791b40a67c87ea3146825767699e5022444e433
diff --git a/media/libmediaextractor/Android.bp b/media/libmediaextractor/Android.bp
index dcdb320..18573db 100644
--- a/media/libmediaextractor/Android.bp
+++ b/media/libmediaextractor/Android.bp
@@ -1,4 +1,4 @@
-cc_library_shared {
+cc_library {
     name: "libmediaextractor",
 
     include_dirs: [