[AVaRICE-user] [Patch] Fix device specific configuration for ATmega328p and ATtiny24

[Fabian B. <fa...@bl...>]

Because of wrong values for SPMCR and IDR adresses,
the debugger is unable to write software breakpoints into flash.
    
The attached patch fixes those values based on Atmel Studios behavior
for ATmega328p and ATtiny24.