fix: add my-sub-pool to support #631 (#748)

* fix: add my-sub-pool to support #631

* update resource alias

test/setup/fixtures.tf

@@ -27,3 +27,18 @@ resource "google_privateca_ca_pool" "default" {
     publish_crl     = true
   }
 }
+
+
+# sub ca pool to use in privateca subordinate samples
+resource "google_privateca_ca_pool" "subpool" {
+  count = local.num_projects
+
+  project  = local.project_ids[count.index]
+  name     = "my-sub-pool"
+  location = "us-central1"
+  tier     = "ENTERPRISE"
+  publishing_options {
+    publish_ca_cert = true
+    publish_crl     = true
+  }
+}