[syslinux] Making the linker output the relevant dynamic stuff

[H. Peter Anvin]

Well, I figured out how to make the linker to the right thing with
regards to producing a dynamic section for the core... it involves using
the options "-pie -Bsymbolic" ... which means we're building a
relocatable binary even though we don't want to relocate it, and
-Bsymbolic is there to force the linker to resolve all symbols at link time.

	-hpa