x86/ibt,kvm: Add ENDBR to fastops

Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2090231


Conflicts: A fuzz due to the presence of a later uptream commit
	   fe83f5ea ("Fix SETcc emulation function offsets with
	   SLS").

commit 6649fa87
Author: Peter Zijlstra <peterz@infradead.org>
Date:   Tue, 8 Mar 2022 16:30:28 +0100

    x86/ibt,kvm: Add ENDBR to fastops

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Josh Poimboeuf <jpoimboe@redhat.com>
    Link: https://lore.kernel.org/r/20220308154318.168850084@infradead.org



Signed-off-by: Waiman Long <longman@redhat.com>