Bring in two bandaids to get the elf trampoline to work again, until I find
a proper solution.

• Add a dummy entry point which just calls the C entry points, and try to make

sure it's the first code in the binary.

• Copy a bit more than func_end to try to copy the whole load_kernel()

function. gcc4 puts code behind the func_end symbol.

Approved by: re (blanket)