NDK api code coverage

Update parsed NDK api xml file directory name.

Test: m ndk
Forrest test build pass: http://shortn/_E5mhRtD4zW

Change-Id: Ic20780d969e33103c45953c9cdd81efe4262b4a9
diff --git a/core/main.mk b/core/main.mk
index 12bb8a4..7793889 100644
--- a/core/main.mk
+++ b/core/main.mk
@@ -1706,7 +1706,7 @@
 
   ifdef CLANG_COVERAGE
     $(foreach f,$(SOONG_NDK_API_XML), \
-        $(call dist-for-goals,droidcore,$(f):ndk_coverage_xml_dir/$(notdir $(f))))
+        $(call dist-for-goals,droidcore,$(f):ndk_apis/$(notdir $(f))))
   endif
 
 # Building a full system-- the default is to build droidcore