64bit emmc fix

	Generating both 32bit and 64bit varaints for emmc

Change-Id: Iefb38576fc6a2c516b13f10e24828b373410d942
diff --git a/tests/ext4/Android.mk b/tests/ext4/Android.mk
index 1ccc4ef..bdd4072 100644
--- a/tests/ext4/Android.mk
+++ b/tests/ext4/Android.mk
@@ -6,6 +6,7 @@
 
 LOCAL_SRC_FILES:= rand_emmc_perf.c
 LOCAL_MODULE:= rand_emmc_perf
+LOCAL_MULTILIB := both
 LOCAL_MODULE_STEM_32:= rand_emmc_perf
 LOCAL_MODULE_STEM_64:= rand_emmc_perf64
 LOCAL_MODULE_TAGS := optional