added support for an alternative ssh port for autotest

remote_access.sh

Index: remote_access.sh
diff --git a/remote_access.sh b/remote_access.sh
index fe4383c27c0d7bd2b3068db6388bdd8c2b23d6b1..f34f30b0b6640ebb86c088a9abb2db68ceb6cb10 100644
--- a/remote_access.sh
+++ b/remote_access.sh
@@ -10,6 +10,8 @@ ssh_keys/testing_rsa"
 DEFINE_string remote "" "remote hostname/IP of running Chromium OS instance"
 DEFINE_string private_key "$DEFAULT_PRIVATE_KEY" \
   "Private key of root account on remote host"
+DEFINE_integer ssh_port 22 \
+  "SSH port of the remote machine running Chromium OS instance"
 
 # Copies $1 to $2 on remote host
 function remote_cp() {
@@ -19,7 +21,7 @@ function remote_cp() {
 }
 
 function remote_sh() {
-  REMOTE_OUT=$(ssh  -o StrictHostKeyChecking=no -o \
+  REMOTE_OUT=$(ssh -p ${FLAGS_ssh_port} -o StrictHostKeyChecking=no -o \
     UserKnownHostsFile=$TMP_KNOWN_HOSTS root@$FLAGS_remote "$@")
   return ${PIPESTATUS[0]}
 }