Fix EMR is not valid for managed_scaling_policy

Fix aws_emr_managed_scaling_policy for compatibility with the behavior of emr_cluster that was fixed as a part of the next problem:

hashicorp#16924
hashicorp#7783

internal/service/emr/managed_scaling_policy.go

@@ -115,6 +115,12 @@ func resourceManagedScalingPolicyRead(d *schema.ResourceData, meta interface{})
 		d.SetId("")
 		return nil
 	}
+
+	if tfawserr.ErrMessageContains(err, "ValidationException", "is not valid") {
+		log.Printf("[WARN] EMR Cluster (%s) not found", d.Id())
+		d.SetId("")
+		return nil
+	}
 
 	if tfawserr.ErrMessageContains(err, "InvalidRequestException", "does not exist") {
 		log.Printf("[WARN] EMR Managed Scaling Policy (%s) not found, removing from state", d.Id())
@@ -152,7 +158,13 @@ func resourceManagedScalingPolicyDelete(d *schema.ResourceData, meta interface{}
 	if tfawserr.ErrMessageContains(err, "ValidationException", "A job flow that is shutting down, terminated, or finished may not be modified") {
 		return nil
 	}
-
+
+	if tfawserr.ErrMessageContains(err, "ValidationException", "is not valid") {
+		log.Printf("[WARN] EMR Cluster (%s) not found", d.Id())
+		d.SetId("")
+		return nil
+	}
+
 	if tfawserr.ErrMessageContains(err, "InvalidRequestException", "does not exist") {
 		return nil
 	}