Bug in MOVEC implementation

This code is part of `m68k_op_movec_32_cr`

```
			case 0x802:			   /* CAAR */
				if(CPU_TYPE_IS_EC020_PLUS(CPU_TYPE))
				{
					REG_DA[(word2 >> 12) & 15] = REG_CAAR;
					return;
				}
				m68ki_exception_illegal();
				break;
```

In the last line, `break` needs to be replaced by `return`. Otherwise, a privilege exception is executed in addition to the illegal exception.