treewide: Simply conditions with the new OF_REAL

Use this new Kconfig to simplify the compilation conditions where
appropriate.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/core/fdtaddr.c b/drivers/core/fdtaddr.c
index 4ffbd6b..6dfda20 100644
--- a/drivers/core/fdtaddr.c
+++ b/drivers/core/fdtaddr.c
@@ -20,7 +20,7 @@
 
 fdt_addr_t devfdt_get_addr_index(const struct udevice *dev, int index)
 {
-#if CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA)
+#if CONFIG_IS_ENABLED(OF_REAL)
 	fdt_addr_t addr;
 
 	if (CONFIG_IS_ENABLED(OF_TRANSLATE)) {