added support for an alternative ssh port for autotest (needed for running autotest on Vibrant VM)

Review URL: http://codereview.chromium.org/2845002

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]}
 }

run_remote_tests.sh

@@ -276,6 +276,7 @@ function main() {
     fi
 
     ${enter_chroot} ${autotest} --board "${FLAGS_board}" -m "${FLAGS_remote}" \
+      --ssh-port ${FLAGS_ssh_port} \
       "${option}" "${control_file}" -r "${results_dir}" ${verbose} \
       "${args[@]}"