Update dump-oat-* and oatdump for new image file layout

Bug: 11997009
Change-Id: I30c356f3ea62b1850d17b5c6bf4af4080a466858
diff --git a/build/Android.common.mk b/build/Android.common.mk
index ae54efb..83c536f 100644
--- a/build/Android.common.mk
+++ b/build/Android.common.mk
@@ -402,5 +402,6 @@
 endif
 
 HOST_CORE_IMG_LOCATION := $(HOST_OUT_JAVA_LIBRARIES)/core.art
+TARGET_CORE_IMG_LOCATION := $(ART_TEST_OUT)/core.art
 
 endif # ANDROID_COMMON_MK