partition is corrupt

Updated result files after merge

mysql-test/suite/parts/r/partition_alter1_1_2_innodb.result:
  Bug#20129: ALTER TABLE ... REPAIR PARTITION ... complains that
  partition is corrupt
  
  Updated result file after merge
mysql-test/suite/parts/t/disabled.def:
  Bug#20129: ALTER TABLE ... REPAIR PARTITION ... complains that
  partition is corrupt
  
  Enabled two tests after fixing the bug.