Clean up mediadrm dependencies

Move various things around so mediadrmserver doesn't need
libstagefright and libmedia

Test: build/boot
Change-Id: I48b713cd679b992cb6ad1262c20394a9892d7027
diff --git a/media/ndk/Android.mk b/media/ndk/Android.mk
index a4f999f..74729e4 100644
--- a/media/ndk/Android.mk
+++ b/media/ndk/Android.mk
@@ -45,6 +45,7 @@
 LOCAL_SHARED_LIBRARIES := \
     libbinder \
     libmedia \
+    libmediadrm \
     libstagefright \
     libstagefright_foundation \
     liblog \