[GIT PULL] x86 setup: don't recalculate ss:esp unless really necessary

Hi Linus, It appears that unconditionally resetting the stack, which fixes old LILO, breaks LOADLIN after all. This patch should work with either, as well as work around the command-line truncation bug in old versions of SYSLINUX. Please pull:

[GIT PULL] x86 setup: don't recalculate ss:esp unless really necessary

Hi Linus, It appears that unconditionally resetting the stack, which fixes old LILO, breaks LOADLIN after all. This patch should work with either, as well as work around the command-line truncation bug in old versions of SYSLINUX. Please pull: