fix findleaves failed to detect ./system/security/keystore-engine/Android.mk
fix findleaves failed to detect ./system/security/keystore-engine/Android.mk

danw/kati,colincross/kati,google/kati,danw/kati,google/kati,dalinaum/kati,pombredanne/kati,shinh/kati,pombredanne/kati,google/kati,colincross/kati,colincross/kati,danw/kati,danw/kati,shinh/kati,pombredanne/kati,dalinaum/kati,shinh/kati,pombredanne/kati,pombredanne/kati,pombredanne/kati,colincross/kati,google/kati,shinh/kati,colincross/kati,dalinaum/kati,dalinaum/kati,danw/kati,dalinaum/kati,google/kati,danw/kati,colincross/kati,shinh/kati,shinh/kati