Change all-subdir-java-files to all-java-files-under,src

Change-Id: I3c15101a769f19b3f3696f315db47c929979b703
diff --git a/java/Android.mk b/java/Android.mk
old mode 100755
new mode 100644
index 4bb8986..e966fc7
--- a/java/Android.mk
+++ b/java/Android.mk
@@ -3,7 +3,7 @@
 
 LOCAL_MODULE_TAGS := optional
 
-LOCAL_SRC_FILES := $(call all-subdir-java-files)
+LOCAL_SRC_FILES := $(call all-java-files-under, src)
 
 LOCAL_PACKAGE_NAME := LatinIME