ART: Fix dependencies of dump-oat-core-target .

This was probably broken by
    https://android-review.googlesource.com/209369
which removed the "default" compiler type but didn't
uptate the variable names to those introduced in
    https://android-review.googlesource.com/337923 .

Test: m dump-oat-core-target
Change-Id: I0fad9a78fea13bf9c7da24d69bb217a2bc57257e
diff --git a/oatdump/Android.mk b/oatdump/Android.mk
index 906404b..667c37c 100644
--- a/oatdump/Android.mk
+++ b/oatdump/Android.mk
@@ -41,7 +41,7 @@
 
 .PHONY: dump-oat-core-target-$(TARGET_ARCH)
 ifeq ($(ART_BUILD_TARGET),true)
-dump-oat-core-target-$(TARGET_ARCH): $(TARGET_CORE_IMAGE_default_$(ART_PHONY_TEST_TARGET_SUFFIX)) $(OATDUMP)
+dump-oat-core-target-$(TARGET_ARCH): $(TARGET_CORE_IMAGE_DEFAULT_$(ART_PHONY_TEST_TARGET_SUFFIX)) $(OATDUMP)
 	$(OATDUMP) --image=$(TARGET_CORE_IMG_LOCATION) \
 	  --output=$(ART_DUMP_OAT_PATH)/core.target.$(TARGET_ARCH).oatdump.txt --instruction-set=$(TARGET_ARCH)
 	@echo Output in $(ART_DUMP_OAT_PATH)/core.target.$(TARGET_ARCH).oatdump.txt
@@ -50,7 +50,7 @@
 ifdef TARGET_2ND_ARCH
 .PHONY: dump-oat-core-target-$(TARGET_2ND_ARCH)
 ifeq ($(ART_BUILD_TARGET),true)
-dump-oat-core-target-$(TARGET_2ND_ARCH): $(TARGET_CORE_IMAGE_default_$(2ND_ART_PHONY_TEST_TARGET_SUFFIX)) $(OATDUMP)
+dump-oat-core-target-$(TARGET_2ND_ARCH): $(TARGET_CORE_IMAGE_DEFAULT_$(2ND_ART_PHONY_TEST_TARGET_SUFFIX)) $(OATDUMP)
 	$(OATDUMP) --image=$(TARGET_CORE_IMG_LOCATION) \
 	  --output=$(ART_DUMP_OAT_PATH)/core.target.$(TARGET_2ND_ARCH).oatdump.txt --instruction-set=$(TARGET_2ND_ARCH)
 	@echo Output in $(ART_DUMP_OAT_PATH)/core.target.$(TARGET_2ND_ARCH).oatdump.txt