fixing fast connect example in the docs

Author: rcohenma

website/docs/d/core_fast_connect_provider_service_key.html.markdown

@@ -18,7 +18,7 @@ provider service key. An invalid key returns a 404 error.
 ```hcl
 data "oci_core_fast_connect_provider_service_key" "test_fast_connect_provider_service_key" {
 	#Required
-	provider_service_id = "${oci_core_provider_service.test_provider_service.id}"
+	provider_service_id = "${data.oci_core_fast_connect_provider_services.test_fast_connect_provider_services.fast_connect_provider_services.0.id}"
 	provider_service_key_name = "${var.fast_connect_provider_service_key_provider_service_key_name}"
 }
 ```

website/docs/d/core_virtual_circuit_bandwidth_shapes.html.markdown

@@ -20,7 +20,7 @@ For more information about virtual circuits, see [FastConnect Overview](https://
 ```hcl
 data "oci_core_virtual_circuit_bandwidth_shapes" "test_virtual_circuit_bandwidth_shapes" {
 	#Required
-	provider_service_id = "${oci_core_provider_service.test_provider_service.id}"
+	provider_service_id = "${data.oci_core_fast_connect_provider_services.test_fast_connect_provider_services.fast_connect_provider_services.0.id}"
 }
 ```
 

website/docs/r/core_virtual_circuit.html.markdown

@@ -54,7 +54,7 @@ resource "oci_core_virtual_circuit" "test_virtual_circuit" {
 	customer_bgp_asn = "${var.virtual_circuit_customer_bgp_asn}"
 	display_name = "${var.virtual_circuit_display_name}"
 	gateway_id = "${oci_core_gateway.test_gateway.id}"
-	provider_service_id = "${oci_core_provider_service.test_provider_service.id}"
+	provider_service_id = "${data.oci_core_fast_connect_provider_services.test_fast_connect_provider_services.fast_connect_provider_services.0.id}"
 	provider_service_key_name = "${var.virtual_circuit_provider_service_key_name}"
 	public_prefixes {
 		#Required