Correct Tests of encryption.innodb_encryption_aborted_rotation* to prevent failure

Test from encryption.innodb_encryption_aborted_rotation* test family sometimes fail with error :
[ 37%] encryption.innodb_encryption_aborted_rotation_row_compressed w3 [ fail ] Found warnings/errors in error log file!
Test ended at 2020-06-10 14:40:47
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2020-06-10T14:38:50.038986Z 1 [Warning] [MY-011825] [InnoDB] In file './test/t1.ibd' (tablespace id = 4) encryption flag is ON. However the encryption flag in the data dictionary is OFF. This indicates that the rotation of the table was interrupted before space's flags were updated. Please have encryption_thread variable (innodb-encryption-threads) set to value > 0. So the encryption could finish up the rotation.
2020-06-10T14:38:50.444445Z 0 [Warning] [MY-011825] [InnoDB] Table encryption flag is OFF in the data dictionary but the encryption flag in file ./test/t1.ibd is ON. This indicates that the rotation of the table was interrupted before space's flags were updated. Please have encryption_thread variable (innodb-encryption-threads) set to value > 0. So the encryption could finish up the rotation.
SET @@GLOBAL.super_read_only = @original_super_read_only;
^ Found warnings in /tmp/results/PS/mysql-test/var/3/log/mysqld.1.err
ok - the logfile can be found in '/tmp/results/PS/mysql-test/var/log/encryption.innodb_encryption_aborted_rotation_row_compressed/innodb_encryption_aborted_rotation_row_compressed.log' - found 'core.24275' (0/5)Trying 'dbx' to get a backtrace