This driver adds the restart functionality for STiH415 and STiH416
platforms from STMicroelectronics.  This driver registers an
arm_pm_restart function to reset the platform.
Signed-off-by: NChristophe Kerello <christophe.kerello@st.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NSebastian Reichel <sre@kernel.org>