Fixes for Xcode 5 and OSX 10.9.
kernel.mk: Put elf.h into the include path on Darwin builds.

Change-Id: I7069b956965d27caac3b2e4c3cc2e8b4c1da7a82
Signed-off-by: iceandfire <arhamjamal@gmail.com>

Conflicts:
	core/combo/HOST_darwin-x86.mk