Fix serial schedule
Fix serial schedule

Test misc depends on brin, but it was earlier in the serial schedule
file.  I didn't notice this because I only run the parallel schedule,
but the buildfarm exposed my folly ...

pavanvd/postgres-xl,ovr/postgres-xl,xinzweb/gpdb,yazun/postgres-xl,ovr/postgres-xl,pavanvd/postgres-xl,Postgres-XL/Postgres-XL,lisakowen/gpdb,zeroae/postgres-xl,lisakowen/gpdb,jmcatamney/gpdb,adam8157/gpdb,lisakowen/gpdb,greenplum-db/gpdb,xinzweb/gpdb,oberstet/postgres-xl,Postgres-XL/Postgres-XL,adam8157/gpdb,zeroae/postgres-xl,Postgres-XL/Postgres-XL,50wu/gpdb,adam8157/gpdb,50wu/gpdb,yazun/postgres-xl,jmcatamney/gpdb,oberstet/postgres-xl,adam8157/gpdb,techdragon/Postgres-XL,50wu/gpdb,greenplum-db/gpdb,adam8157/gpdb,ashwinstar/gpdb,pavanvd/postgres-xl,lisakowen/gpdb,oberstet/postgres-xl,50wu/gpdb,50wu/gpdb,zeroae/postgres-xl,Postgres-XL/Postgres-XL,lisakowen/gpdb,ashwinstar/gpdb,greenplum-db/gpdb,jmcatamney/gpdb,zeroae/postgres-xl,50wu/gpdb,ashwinstar/gpdb,lisakowen/gpdb,xinzweb/gpdb,oberstet/postgres-xl,xinzweb/gpdb,oberstet/postgres-xl,Postgres-XL/Postgres-XL,xinzweb/gpdb,adam8157/gpdb,ashwinstar/gpdb,50wu/gpdb,ovr/postgres-xl,jmcatamney/gpdb,lisakowen/gpdb,jmcatamney/gpdb,jmcatamney/gpdb,adam8157/gpdb,ovr/postgres-xl,xinzweb/gpdb,techdragon/Postgres-XL,xinzweb/gpdb,yazun/postgres-xl,zeroae/postgres-xl,jmcatamney/gpdb,greenplum-db/gpdb,lisakowen/gpdb,ashwinstar/gpdb,adam8157/gpdb,yazun/postgres-xl,techdragon/Postgres-XL,ashwinstar/gpdb,jmcatamney/gpdb,pavanvd/postgres-xl,greenplum-db/gpdb,xinzweb/gpdb,50wu/gpdb,techdragon/Postgres-XL,greenplum-db/gpdb,ovr/postgres-xl,ashwinstar/gpdb,yazun/postgres-xl,pavanvd/postgres-xl,greenplum-db/gpdb,greenplum-db/gpdb,techdragon/Postgres-XL,ashwinstar/gpdb