Fix execution issues for apksigner

Dockerfile

@@ -5,11 +5,12 @@ RUN apt-get update && \
       python-pip \
       python-wheel \
       python-setuptools \
-      apksigner \
-      binfmt-support
+      apksigner
 
 RUN pip install s3cmd
 
+RUN unlink /usr/bin/apksigner
+ADD apksigner.sh /usr/bin/apksigner
 ADD update_repo.sh /
 ADD Makefile /
 

apksigner.sh

+#!/bin/sh
+exec java -jar /usr/share/apksigner/apksigner.jar