eclair-linaro: Resurrect tf-environment.install

To capture latest value of PATH.

Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
Change-Id: Ic6fc57ba12e66bc9d88268b37b22c1023d2a3f2f
diff --git a/eclair-linaro/Dockerfile b/eclair-linaro/Dockerfile
index 1cb6b15..ba95a8e 100644
--- a/eclair-linaro/Dockerfile
+++ b/eclair-linaro/Dockerfile
@@ -71,9 +71,12 @@
     openssh-server \
     python3
 
+COPY tf-*.install /tmp/
 COPY setup-sshd /usr/sbin/setup-sshd
 COPY entrypoint.sh /usr/sbin/entrypoint.sh
 
+RUN bash -ex /tmp/tf-environment.install
+
 
 USER eclair
 
diff --git a/eclair-linaro/tf-environment.install b/eclair-linaro/tf-environment.install
new file mode 100755
index 0000000..ec1aadc
--- /dev/null
+++ b/eclair-linaro/tf-environment.install
@@ -0,0 +1,5 @@
+#!/bin/sh
+
+set -e
+
+env | grep PATH >> /etc/environment