dm: sysreset: x86: Add a sysreset driver

This adds a generic reset driver for x86 processor.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/sysreset/Kconfig b/drivers/sysreset/Kconfig
index f2524c1..9b2fda4 100644
--- a/drivers/sysreset/Kconfig
+++ b/drivers/sysreset/Kconfig
@@ -51,4 +51,10 @@
 	help
 	  Reboot support for generic watchdog reset.
 
+config SYSRESET_X86
+	bool "Enable support for x86 processor reboot driver"
+	depends on X86
+	help
+	  Reboot support for generic x86 processor reset.
+
 endmenu