ci: update docker image and deps

Signed-off-by: Anas Nashif <[email protected]>

Author: nashif

.shippable.yml

@@ -21,13 +21,13 @@ build:
         - ${SHIPPABLE_BUILD_DIR}/sources
     pre_ci_boot:
         image_name: zephyrprojectrtos/ci
-        image_tag: v0.3
+        image_tag: v0.4-rc7
         pull: true
         options: "-e HOME=/home/buildslave --privileged=true --tty --net=bridge --user buildslave"
 
     ci:
       - ccache -s
-      - sudo apt-get install -y gawk wget git-core diffstat unzip texinfo gcc-multilib build-essential
+      - sudo apt-get install -y gawk wget git-core diffstat unzip texinfo gcc-multilib build-essential libtool-bin
       - sudo apt-get install -y libreadline-dev gperf flex bison libncurses5-dev texinfo help2man
       - unset CC
       - ./go.sh ${TARGET}