test: Rename test_get_state() to ut_get_state()

Rename this function and test_set_state() so use the same ut_ prefix as
other functions in ut.h

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/test/dm/test-driver.c b/test/dm/test-driver.c
index 851177c..759de3a 100644
--- a/test/dm/test-driver.c
+++ b/test/dm/test-driver.c
@@ -35,7 +35,7 @@
 
 static int test_bind(struct udevice *dev)
 {
-	struct unit_test_state *uts = test_get_state();
+	struct unit_test_state *uts = ut_get_state();
 
 	/* Private data should not be allocated */
 	ut_assert(!dev_get_priv(dev));
@@ -46,7 +46,7 @@
 
 static int test_probe(struct udevice *dev)
 {
-	struct unit_test_state *uts = test_get_state();
+	struct unit_test_state *uts = ut_get_state();
 	struct dm_test_priv *priv = dev_get_priv(dev);
 
 	/* Private data should be allocated */
@@ -59,7 +59,7 @@
 
 static int test_remove(struct udevice *dev)
 {
-	struct unit_test_state *uts = test_get_state();
+	struct unit_test_state *uts = ut_get_state();
 
 	/* Private data should still be allocated */
 	ut_assert(dev_get_priv(dev));
@@ -70,7 +70,7 @@
 
 static int test_unbind(struct udevice *dev)
 {
-	struct unit_test_state *uts = test_get_state();
+	struct unit_test_state *uts = ut_get_state();
 
 	/* Private data should not be allocated */
 	ut_assert(!dev_get_priv(dev));
@@ -121,7 +121,7 @@
 
 static int test_manual_probe(struct udevice *dev)
 {
-	struct unit_test_state *uts = test_get_state();
+	struct unit_test_state *uts = ut_get_state();
 
 	dm_testdrv_op_count[DM_TEST_OP_PROBE]++;
 	if (!uts->force_fail_alloc)