treewide: Try to avoid the preprocessor with OF_REAL

Convert some of these occurences to C code, where it is easy to do. This
should help encourage this approach to be used in new code.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/spi/rk_spi.c b/drivers/spi/rk_spi.c
index e504e30..8309a53 100644
--- a/drivers/spi/rk_spi.c
+++ b/drivers/spi/rk_spi.c
@@ -193,31 +193,31 @@
 
 static int rockchip_spi_of_to_plat(struct udevice *bus)
 {
-#if CONFIG_IS_ENABLED(OF_REAL)
 	struct rockchip_spi_plat *plat = dev_get_plat(bus);
 	struct rockchip_spi_priv *priv = dev_get_priv(bus);
 	int ret;
 
-	plat->base = dev_read_addr(bus);
+	if (CONFIG_IS_ENABLED(OF_REAL)) {
+		plat->base = dev_read_addr(bus);
 
-	ret = clk_get_by_index(bus, 0, &priv->clk);
-	if (ret < 0) {
-		debug("%s: Could not get clock for %s: %d\n", __func__,
-		      bus->name, ret);
-		return ret;
-	}
+		ret = clk_get_by_index(bus, 0, &priv->clk);
+		if (ret < 0) {
+			debug("%s: Could not get clock for %s: %d\n", __func__,
+			      bus->name, ret);
+			return ret;
+		}
 
-	plat->frequency =
-		dev_read_u32_default(bus, "spi-max-frequency", 50000000);
-	plat->deactivate_delay_us =
-		dev_read_u32_default(bus, "spi-deactivate-delay", 0);
-	plat->activate_delay_us =
-		dev_read_u32_default(bus, "spi-activate-delay", 0);
+		plat->frequency = dev_read_u32_default(bus, "spi-max-frequency",
+						       50000000);
+		plat->deactivate_delay_us =
+			dev_read_u32_default(bus, "spi-deactivate-delay", 0);
+		plat->activate_delay_us =
+			dev_read_u32_default(bus, "spi-activate-delay", 0);
 
-	debug("%s: base=%x, max-frequency=%d, deactivate_delay=%d\n",
-	      __func__, (uint)plat->base, plat->frequency,
-	      plat->deactivate_delay_us);
-#endif
+		debug("%s: base=%x, max-frequency=%d, deactivate_delay=%d\n",
+		      __func__, (uint)plat->base, plat->frequency,
+		      plat->deactivate_delay_us);
+	}
 
 	return 0;
 }