Fix the curl command in the ironic-deploy element

We need to use the eval command together with curl so that the
$TOKEN_HEADER variable is seems by curl as two arguments: "-H" and
"'X-Auth-Token: ...". Without the eval bash would interpret the variable
as only one argument "-H 'X-Auth-Token: ...'" making the curl command
to not understand that parameter and fail to pass the auth_token to the
Ironic API.

Change-Id: I4dcfc323d6ab9b7fa207328386ef65a146a93617

elements/deploy-ironic/init.d/80-deploy-ironic

@@ -36,12 +36,12 @@ fi
 DATA="'{\"address\":\"$BOOT_IP_ADDRESS\",\"key\":\"$DEPLOYMENT_KEY\",\"iqn\":\"$ISCSI_TARGET_IQN\",\"error\":\"$FIRST_ERR_MSG\"}'"
 
 echo "request Ironic API to deploy image"
-curl \
- -X POST \
- -H 'Content-Type: application/json' \
- $TOKEN_HEADER \
- -d $DATA \
- $IRONIC_API_URL/nodes/$DEPLOYMENT_ID/vendor_passthru/pass_deploy_info
+eval curl -i -X POST \
+     "$TOKEN_HEADER" \
+     "-H 'Accept: application/json'" \
+     "-H 'Content-Type: application/json'" \
+     -d "$DATA" \
+     $IRONIC_API_URL/nodes/$DEPLOYMENT_ID/vendor_passthru/pass_deploy_info
 
 echo "waiting for notice of complete"
 nc -l -p 10000