scripts: Export RSYNC_RSH environment variable in deploy-package.sh.

Otherwise it wouldn't be in effect when using the
'--remote-ssh-identity' option of the script.

* scripts/deploy-packages.sh (fetch_qt_deb) <RSYNC_RSH>: Export.
(deploy) <RSYNC_RSH>: Likewise.

Change-Id: Ia738402a16dad4eed3557137c82a3cdb6bbdeeef

scripts/deploy-packages.sh

@@ -35,7 +35,7 @@ function fetch_qt_deb()
 {
     if [ -f "${SSH_IDENTITY_FILE}" ];
     then
-        RSYNC_RSH="ssh -i ${SSH_IDENTITY_FILE}"
+        export RSYNC_RSH="ssh -i ${SSH_IDENTITY_FILE}"
     fi
 
     echo "#####################"
@@ -269,7 +269,7 @@ function deploy()
 {
     if [ -f "${SSH_IDENTITY_FILE}" ];
     then
-        RSYNC_RSH="ssh -i ${SSH_IDENTITY_FILE}"
+        export RSYNC_RSH="ssh -i ${SSH_IDENTITY_FILE}"
     fi
 
     echo "##########################"