The utf8_swedish_ci and ucs2_swedish_ci
collations do not work with indexes on 
IBMDB2I tables.

The current patch adds the mapping for
ucs2_swedish collation and removes the 
ucs2_spanish2 mapping which is not
supported by any version of the operating
system.

storage/ibmdb2i/db2i_collationSupport.cc:
  Removed mapping for ucs2_spanish2 collation
  since it is not supported by any version of the operating system. Added mapping for ucs2_swedish
  collation which had been overlooked but is
  supported by the IBM i 6.1.