8213618: IBM970 charset has missing entry and remove unexpected entries
Reviewed-by: srl, martin

   1 A1A4       00B7
   2 A1A9       00AD
   3 A1AA       2015
   4 A1AD       223C
   5 A2A6       FF5E
   6 A2C1       2299
   7 A3DC       20A9











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