objcopy on the sample "hello" program

[Harris, Andrew]

Hi -

	I was able to rearrange the arguments to OBJCOPY in the
powerpc-rtems/c/mcp750/make/custom/mcp750.cfg file.

> powerpc-rtems-objcopy o-optimize/hello.nxe rtems -O binary -R 
> .comment -S
> Usage: powerpc-rtems-objcopy [option(s)] in-file [out-file]

I rearranged the command so that it was doing:

powerpc-rtems-objcopy -O binary -R .comment -S o-optimize/hello.nxe rtems

-andrew