Fixing a typo: UINT32_MAX -> UINT_MAX32 (introduced by the patch for MDEV-9217)
Fixing a typo: UINT32_MAX -> UINT_MAX32 (introduced by the patch for MDEV-9217)

Note, some platforms have definitions for UINT32_MAX,
so compiled without problems on FC.

natsys/mariadb_10.2,natsys/mariadb_10.2,natsys/mariadb_10.2,natsys/mariadb_10.2,natsys/mariadb_10.2,natsys/mariadb_10.2,natsys/mariadb_10.2,natsys/mariadb_10.2,natsys/mariadb_10.2,natsys/mariadb_10.2,natsys/mariadb_10.2