Fix to ROMRAM applications for EB40a

[Øyvind Harboe]

>> +	* include/hal_platform_setup.h:
>> +	Use PC relative addressing to find pointer to InitMemory
>> +	making debugging with e.g. Abatron ICE smoother for ROMRAM
>> +	applications since the Abatron ICE can in some cases perform
>> +	the remap command.
>
>OK.

I suggest that you commit these changes for now. I'll submit a 
new patch, once I understand the .ldi stuff well enough.

Øyvind