Include oatdump/Android.mk

oatdump/Android.mk wasn't removed as part of the Android.bp conversion,
as it still contains custom targets like dump-oat-boot.  Add it back to
the subdirs included by art/Android.mk.  Also put back the
ART_DUMP_OAT_PATH variable used by the dump-oat-* targets.

Change-Id: If7086b48e268e3620a3377d0f37442673699ec26
diff --git a/Android.mk b/Android.mk
index 0ed5d87..5a17379 100644
--- a/Android.mk
+++ b/Android.mk
@@ -77,6 +77,7 @@
 # product rules
 
 include $(art_path)/dex2oat/Android.mk
+include $(art_path)/oatdump/Android.mk
 include $(art_path)/imgdiag/Android.mk
 include $(art_path)/patchoat/Android.mk
 include $(art_path)/profman/Android.mk
diff --git a/oatdump/Android.mk b/oatdump/Android.mk
index 7be8a8d..d80df70 100644
--- a/oatdump/Android.mk
+++ b/oatdump/Android.mk
@@ -16,6 +16,11 @@
 
 LOCAL_PATH := $(call my-dir)
 
+########################################################################
+# oatdump targets
+
+ART_DUMP_OAT_PATH ?= $(OUT_DIR)
+
 OATDUMP := $(HOST_OUT_EXECUTABLES)/oatdump$(HOST_EXECUTABLE_SUFFIX)
 OATDUMPD := $(HOST_OUT_EXECUTABLES)/oatdumpd$(HOST_EXECUTABLE_SUFFIX)
 # TODO: for now, override with debug version for better error reporting