disable mariabackup.incremental_encrypted,64k on 32bit

it allocates 1GB of memory, it causes failures in CI

mysql-test/suite/mariabackup/incremental_encrypted.test

@@ -7,6 +7,12 @@ if (!$EXAMPLE_KEY_MANAGEMENT_SO)
 }
 call mtr.add_suppression("InnoDB: New log files created");
 
+if (`select @@innodb_page_size=65536`)
+{
+  # this needs too much memory for 32bit
+  source include/have_64bit.inc;
+}
+
 
 let $basedir=$MYSQLTEST_VARDIR/tmp/backup;
 let $incremental_dir=$MYSQLTEST_VARDIR/tmp/backup_inc1;