Adding 64 bit emmc_rand_perf

Genrating 32bit and 64bit variant in local/tmp

Change-Id: Ia9a640eab5bfc428d00af4ae0ada6184d946108a
diff --git a/tests/ext4/Android.mk b/tests/ext4/Android.mk
index e471ef9..1ccc4ef 100644
--- a/tests/ext4/Android.mk
+++ b/tests/ext4/Android.mk
@@ -1,11 +1,15 @@
 # Copyright 2012 The Android Open Source Project
 
+local_target_dir := $(TARGET_OUT_DATA)/local/tmp
 LOCAL_PATH:= $(call my-dir)
 include $(CLEAR_VARS)
 
 LOCAL_SRC_FILES:= rand_emmc_perf.c
 LOCAL_MODULE:= rand_emmc_perf
+LOCAL_MODULE_STEM_32:= rand_emmc_perf
+LOCAL_MODULE_STEM_64:= rand_emmc_perf64
 LOCAL_MODULE_TAGS := optional
+LOCAL_MODULE_PATH := $(local_target_dir)
 LOCAL_FORCE_STATIC_EXECUTABLE := true
 LOCAL_STATIC_LIBRARIES := libm libc