x86: Disable microcode section for FSP2

At present we don't support loading microcode with FSP2. The correct way
to do this is by adding it to the FIT. For now, disable including
microcode in the image.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>

arch/x86/Kconfig

@@ -588,6 +588,10 @@ config HAVE_REFCODE
           broadwell) U-Boot will be missing some critical setup steps.
           Various peripherals may fail to work.
 
+config HAVE_MICROCODE
+	bool
+	default y if !FSP_VERSION2
+
 config SMP
 	bool "Enable Symmetric Multiprocessing"
 	default n

arch/x86/dts/u-boot.dtsi

@@ -37,11 +37,13 @@
 	};
 #endif
 #ifdef CONFIG_TPL
+#ifdef CONFIG_HAVE_MICROCODE
 	u-boot-tpl-with-ucode-ptr {
 		offset = <CONFIG_TPL_TEXT_BASE>;
 	};
 	u-boot-tpl-dtb {
 	};
+#endif
 	u-boot-spl {
 		offset = <CONFIG_SPL_TEXT_BASE>;
 	};
@@ -77,11 +79,16 @@
 		offset = <CONFIG_SYS_TEXT_BASE>;
 	};
 #endif
+#ifdef CONFIG_HAVE_MICROCODE
 	u-boot-dtb-with-ucode {
 	};
 	u-boot-ucode {
 		align = <16>;
 	};
+#else
+	u-boot-dtb {
+	};
+#endif
 #ifdef CONFIG_HAVE_X86_FIT
 	intel-fit {
 	};