sysreset: implement TPS80031 sysreset functions

TPS80031/TPS80032 PMICs have embedded power control functions
used by some device to initiane device power off. Implement it as
sysreset driver.

Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
diff --git a/drivers/sysreset/Kconfig b/drivers/sysreset/Kconfig
index bc35896..cdb4ae2 100644
--- a/drivers/sysreset/Kconfig
+++ b/drivers/sysreset/Kconfig
@@ -157,6 +157,14 @@
 	  This enables the system reset driver support over TI System Control
 	  Interface available on some new TI's SoCs.
 
+config SYSRESET_TPS80031
+	bool "Enable support for TPS80031/TPS80032 PMIC System Reset"
+	depends on DM_PMIC_TPS80031
+	select SYSRESET_CMD_POWEROFF if CMD_POWEROFF
+	help
+	  Enable system power management functions found in TPS80031/TPS80032
+	  PMICs.
+
 config SYSRESET_SYSCON
 	bool "Enable support for mfd syscon reboot driver"
 	select REGMAP