Merge branch 'core-objtool-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull objtool build fix from Ingo Molnar:
 "Fix objtool builds with more exotic, user-defined CFLAGS"

* 'core-objtool-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  objtool: Clobber user CFLAGS variable