power: reset: Add restart functionality for STiH41x platforms

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: Christophe Kerello <christophe.kerello@st.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
diff --git a/drivers/power/reset/Kconfig b/drivers/power/reset/Kconfig
index 7615639..88603b6 100644
--- a/drivers/power/reset/Kconfig
+++ b/drivers/power/reset/Kconfig
@@ -82,6 +82,12 @@
 	help
 	  Reboot support for the Allwinner A31 SoCs.
 
+config POWER_RESET_ST
+	bool "ST restart power-off driver"
+	depends on POWER_RESET && ARCH_STI
+	help
+	  Power off and reset support for STMicroelectronics boards.
+
 config POWER_RESET_VEXPRESS
 	bool "ARM Versatile Express power-off and reset driver"
 	depends on ARM || ARM64