createdisk: add -r option to scp to copy directories

arm64 contains some dirs in the ostree content

createdisk.sh

@@ -9,7 +9,7 @@ source tools.sh
 source createdisk-library.sh
 
 SSH="ssh -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -i id_ecdsa_crc"
-SCP="scp -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -i id_ecdsa_crc"
+SCP="scp -r -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -i id_ecdsa_crc"
 # If the user set OKD_VERSION in the environment, then use it to override OPENSHIFT_VERSION, set BASE_OS
 # Unless, those variables are explicitly set as well.
 OKD_VERSION=${OKD_VERSION:-none}