rockchip: rk3188: Add sysreset driver

Driver for the sysreset of Rockchip rk3188 socs.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/drivers/sysreset/Makefile b/drivers/sysreset/Makefile
index 21bcc21..e00b0f3 100644
--- a/drivers/sysreset/Makefile
+++ b/drivers/sysreset/Makefile
@@ -9,6 +9,7 @@
 ifndef CONFIG_SPL_BUILD
 obj-$(CONFIG_ROCKCHIP_RK3036) += sysreset_rk3036.o
 endif
+obj-$(CONFIG_ROCKCHIP_RK3188) += sysreset_rk3188.o
 obj-$(CONFIG_ROCKCHIP_RK3288) += sysreset_rk3288.o
 obj-$(CONFIG_ROCKCHIP_RK3399) += sysreset_rk3399.o
 obj-$(CONFIG_SANDBOX) += sysreset_sandbox.o