wlan-ap: changed docker PATH to docker to speed up compilation.

Otherwise docker build is sending around 12G-16GB to docker daemon.
Since we are binding the wlan-ap code in the docker we do not have  to
send entire code to docker daemon.

Signed-off-by: Sasikantha Babu <sbabu@benunets.com>

dock-run.sh

@@ -4,6 +4,6 @@ tag=$(echo ${PWD} | tr / - | cut -b2- | tr A-Z a-z)
 groups=$(id -G | xargs -n1 echo -n " --group-add ")
 params="-v ${PWD}:${PWD} --rm -w ${PWD} -u"$(id -u):$(id -g)" $groups -v/etc/passwd:/etc/passwd -v/etc/group:/etc/group ${tag}"
 
-docker build --tag=${tag} .
+docker build --tag=${tag} docker
 
 docker run $params $@