Point rom region to correct type. (#465)

Author: stuken

src/mame/misc/cv1k.cpp

@@ -919,7 +919,7 @@ ROM_START( akatana )
  ROM_REGION( 0x400000, "maincpu", ROMREGION_ERASEFF)
  ROM_LOAD16_WORD_SWAP( "u4", 0x000000, 0x400000, CRC(613fd380) SHA1(6e28480eef3b483d00b42d811a9d2c7fa1097924) ) // (2010/ 8/13 MASTER VER.)
 
- ROM_REGION( 0x8400000, "game", ROMREGION_ERASEFF)
+ ROM_REGION( 0x8400000, "nand", ROMREGION_ERASEFF)
  ROM_LOAD( "u2", 0x000000, 0x8400000, CRC(89a2e1a5) SHA1(e6f4ec974406283665697fdd52bd606d0337dd11) )
 
  ROM_REGION( 0x800000, "ymz770", ROMREGION_ERASEFF)
@@ -932,7 +932,7 @@ ROM_START( ddpsdoj )
  ROM_LOAD16_WORD_SWAP("u4", 0x000000, 0x400000, CRC(e2a4411c) SHA1(f8b2b6326dd8eeae99b8b1ab2bd5a3f0b9c7f027) )
  ROM_IGNORE( 0x000100 ) // Flash extra bytes
 
- ROM_REGION( 0x8400000, "game", ROMREGION_ERASEFF)
+ ROM_REGION( 0x8400000, "nand", ROMREGION_ERASEFF)
  ROM_LOAD("u2", 0x000000, 0x8400000, CRC(668e4cd6) SHA1(da0b10865df3a3e46cf8a109ca88a551faba4483) )
 
  ROM_REGION( 0x800000, "ymz770", ROMREGION_ERASEFF)