test: Add tests for sysreset_get_status

Add some tests for sysreset_get_status.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Mario Six <mario.six@gdsys.cc>
diff --git a/drivers/sysreset/sysreset_sandbox.c b/drivers/sysreset/sysreset_sandbox.c
index f12c4e8..75004d9 100644
--- a/drivers/sysreset/sysreset_sandbox.c
+++ b/drivers/sysreset/sysreset_sandbox.c
@@ -29,6 +29,13 @@
 	return -EINPROGRESS;
 }
 
+int sandbox_warm_sysreset_get_status(struct udevice *dev, char *buf, int size)
+{
+	strlcpy(buf, "Reset Status: WARM", size);
+
+	return 0;
+}
+
 static int sandbox_sysreset_request(struct udevice *dev, enum sysreset_t type)
 {
 	struct sandbox_state *state = state_get_current();
@@ -60,8 +67,16 @@
 	return -EINPROGRESS;
 }
 
+int sandbox_sysreset_get_status(struct udevice *dev, char *buf, int size)
+{
+	strlcpy(buf, "Reset Status: COLD", size);
+
+	return 0;
+}
+
 static struct sysreset_ops sandbox_sysreset_ops = {
 	.request	= sandbox_sysreset_request,
+	.get_status	= sandbox_sysreset_get_status,
 };
 
 static const struct udevice_id sandbox_sysreset_ids[] = {
@@ -78,6 +93,7 @@
 
 static struct sysreset_ops sandbox_warm_sysreset_ops = {
 	.request	= sandbox_warm_sysreset_request,
+	.get_status	= sandbox_warm_sysreset_get_status,
 };
 
 static const struct udevice_id sandbox_warm_sysreset_ids[] = {