x86: broadwell: Add support for high-speed I/O lane with ME

Provide a way to determine the HSIO (high-speed I/O) version supported by
the Intel Management Engine (ME) implementation on the platform.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/arch/x86/cpu/broadwell/Makefile b/arch/x86/cpu/broadwell/Makefile
index 012798f..7edb6f6 100644
--- a/arch/x86/cpu/broadwell/Makefile
+++ b/arch/x86/cpu/broadwell/Makefile
@@ -7,6 +7,7 @@
 obj-y += cpu.o
 obj-y += iobp.o
 obj-y += lpc.o
+obj-y += me.o
 obj-y += northbridge.o
 obj-y += pch.o
 obj-y += pinctrl_broadwell.o