The support added later in this series tweaks the PMIC voltages in the SPL. Enable support for the rn5t567 in SPL builds to allow this to be done cleanly. Signed-off-by: Martyn Welch <martyn.welch@collabora.co.uk> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>