treewide: Use OF_REAL instead of !OF_PLATDATA

Now that we have a 'positive' Kconfig option, use this instead of the
negative one, which is harder to understand.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/x86/cpu/apollolake/pmc.c b/arch/x86/cpu/apollolake/pmc.c
index 1d21187..163119e 100644
--- a/arch/x86/cpu/apollolake/pmc.c
+++ b/arch/x86/cpu/apollolake/pmc.c
@@ -107,7 +107,7 @@
 	struct acpi_pmc_upriv *upriv = dev_get_uclass_priv(dev);
 	struct apl_pmc_plat *plat = dev_get_plat(dev);
 
-#if !CONFIG_IS_ENABLED(OF_PLATDATA)
+#if CONFIG_IS_ENABLED(OF_REAL)
 	u32 base[6];
 	int size;
 	int ret;
@@ -206,7 +206,7 @@
 	.global_reset_set_enable = apl_global_reset_set_enable,
 };
 
-#if !CONFIG_IS_ENABLED(OF_PLATDATA)
+#if CONFIG_IS_ENABLED(OF_REAL)
 static const struct udevice_id apl_pmc_ids[] = {
 	{ .compatible = "intel,apl-pmc" },
 	{ }