add depedency 'file' tool

Signed-off-by: Sanjam Panda <[email protected]>

Author: saitama951

docker/image/Dockerfile

@@ -39,6 +39,7 @@ RUN apt-get update && \
     apt-get install --no-install-recommends --yes \
         binutils-multiarch \
         clang-$llvm_version \
+        file \
         cpio \
         gawk \
         git \