x86: ivybridge: Ensure LPC is available for GPIO base

The bd82x6x_get_gpio_base() does not work if the LPC is not set up.
Probe it early to avoid this problem.

In chromebook_link64 this problem shows up as an inability to read
the GPIO straps for the memory type.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
1 file changed