[Avrora] Setting MCUCSR default value

[Simon Han]

Hello,

	On ATmega128, MCUCSR is zero when the program is started.  Would it  
be possible to change this to 0x01 (for power on reboot).

	Here is the code for it.  :-)

================
ActiveRegister MCUCSR_reg = getIOReg("MCUCSR");
MCUCSR_reg.write((byte)0x01);
================

Could someone add this to the end of ATMega128.java:ATMega128(int id,  
ClockDomain cd, Program p)?

Thank you,
Simon