MDEV-8159 InnoDB: Failing assertion: key_state->key_id

to simplify various checks, set crypt_data->key_id even
for not encrypted tablespaces

mysql-test/suite/encryption/r/innodb-encr-threads.result

+create table t1 (i int) engine=innodb;
+set global innodb_encryption_threads = 1;
+set global innodb_encryption_rotate_key_age = 2;
+insert t1 values (1);
+set global innodb_encryption_threads = 0;
+set global innodb_encryption_rotate_key_age = 1;
+drop table t1;

mysql-test/suite/encryption/t/innodb-encr-threads.test

+--source include/have_innodb.inc
+--source include/have_file_key_management_plugin.inc
+
+#
+# MDEV-8159 InnoDB: Failing assertion: key_state->key_id
+#
+create table t1 (i int) engine=innodb;
+set global innodb_encryption_threads = 1;
+set global innodb_encryption_rotate_key_age = 2;
+insert t1 values (1);
+set global innodb_encryption_threads = 0;
+set global innodb_encryption_rotate_key_age = 1;
+drop table t1;
+

storage/innobase/fil/fil0crypt.cc

@@ -203,7 +203,6 @@ fil_space_create_crypt_data(
 		crypt_data->min_key_version = 0;
 	} else {
 		crypt_data->type = CRYPT_SCHEME_1;
-		crypt_data->key_id = key_id;
 		crypt_data->min_key_version = encryption_key_get_latest_version(key_id);
 	}
 
@@ -212,6 +211,7 @@ fil_space_create_crypt_data(
 	crypt_data->locker = crypt_data_scheme_locker;
 	my_random_bytes(crypt_data->iv, sizeof(crypt_data->iv));
 	crypt_data->encryption = FIL_SPACE_ENCRYPTION_DEFAULT;
+	crypt_data->key_id = key_id;
 	return crypt_data;
 }
 

storage/xtradb/fil/fil0crypt.cc

@@ -203,7 +203,6 @@ fil_space_create_crypt_data(
 		crypt_data->min_key_version = 0;
 	} else {
 		crypt_data->type = CRYPT_SCHEME_1;
-		crypt_data->key_id = key_id;
 		crypt_data->min_key_version = encryption_key_get_latest_version(key_id);
 	}
 
@@ -212,6 +211,7 @@ fil_space_create_crypt_data(
 	crypt_data->locker = crypt_data_scheme_locker;
 	my_random_bytes(crypt_data->iv, sizeof(crypt_data->iv));
 	crypt_data->encryption = FIL_SPACE_ENCRYPTION_DEFAULT;
+	crypt_data->key_id = key_id;
 	return crypt_data;
 }