limit mediaextractor memory

Limit mediaextractor using rlimit, to prevent it from bringing down the system
via the low memory killer.

Bug: 28471206
Bug: 28615448
Change-Id: Ic84137435d1ef0a6883e9789a4b4f399e4283f05
diff --git a/media/libmedia/Android.mk b/media/libmedia/Android.mk
index 6586f41..2bdfd43 100644
--- a/media/libmedia/Android.mk
+++ b/media/libmedia/Android.mk
@@ -49,6 +49,7 @@
     IResourceManagerService.cpp \
     IStreamSource.cpp \
     MediaCodecInfo.cpp \
+    MediaUtils.cpp \
     Metadata.cpp \
     mediarecorder.cpp \
     IMediaMetadataRetriever.cpp \