Add the dalvikvm symlink to the art-host rule.

The art script requires it.

Change-Id: I60bc7dbd57e7415089f5b14bf470ceffa1dcb581
diff --git a/Android.mk b/Android.mk
index b1c2b8f..14cd0f3 100644
--- a/Android.mk
+++ b/Android.mk
@@ -364,9 +364,9 @@
 # "m art-host" for just building the files needed to run the art script
 .PHONY: art-host
 ifeq ($(HOST_PREFER_32_BIT),true)
-art-host:   $(HOST_OUT_EXECUTABLES)/art $(HOST_OUT)/bin/dalvikvm32 $(HOST_OUT)/lib/libart.so $(HOST_OUT)/bin/dex2oat $(HOST_CORE_IMG_OUT) $(HOST_OUT)/lib/libjavacore.so
+art-host:   $(HOST_OUT_EXECUTABLES)/art $(HOST_OUT)/bin/dalvikvm32 $(HOST_OUT)/lib/libart.so $(HOST_OUT)/bin/dex2oat $(HOST_CORE_IMG_OUT) $(HOST_OUT)/lib/libjavacore.so $(HOST_OUT)/bin/dalvikvm
 else
-art-host:   $(HOST_OUT_EXECUTABLES)/art $(HOST_OUT)/bin/dalvikvm64 $(HOST_OUT)/bin/dalvikvm32 $(HOST_OUT)/lib/libart.so $(HOST_OUT)/bin/dex2oat $(HOST_CORE_IMG_OUT) $(HOST_OUT)/lib/libjavacore.so
+art-host:   $(HOST_OUT_EXECUTABLES)/art $(HOST_OUT)/bin/dalvikvm64 $(HOST_OUT)/bin/dalvikvm32 $(HOST_OUT)/lib/libart.so $(HOST_OUT)/bin/dex2oat $(HOST_CORE_IMG_OUT) $(HOST_OUT)/lib/libjavacore.so $(HOST_OUT)/bin/dalvikvm
 endif
 
 .PHONY: art-host-debug