[klibc] kbuild: sync with kernel 3.4-rc7

Update Kbuild.include and fixup Kbuild.klibc.
This fixes a bug where all files are rebuild each time we invoke make.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2 files changed