x86/kvm: Simplify FOP_SETCC()

SETCC_ALIGN and FOP_ALIGN are both 16.  Remove the special casing for
FOP_SETCC() and just make it a normal fastop.

Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Message-Id: <7c13d94d1a775156f7e36eed30509b274a229140.1660837839.git.jpoimboe@kernel.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>