Move makedict to live under dicttool (A5)

This removes the makedict directory and makes a new target
to replace it. The old command is still working the same
way it used to.

Change-Id: Ie73b12a7ef101dd2b282e0cb4206ac263af1093e
diff --git a/tools/dicttool/etc/Android.mk b/tools/dicttool/etc/Android.mk
index 03d4a96..1eab70f 100644
--- a/tools/dicttool/etc/Android.mk
+++ b/tools/dicttool/etc/Android.mk
@@ -16,5 +16,5 @@
 include $(CLEAR_VARS)
 
 LOCAL_MODULE_TAGS := eng
-LOCAL_PREBUILT_EXECUTABLES := dicttool
+LOCAL_PREBUILT_EXECUTABLES := dicttool makedict
 include $(BUILD_HOST_PREBUILT)