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: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/arch/x86/dts/u-boot.dtsi b/arch/x86/dts/u-boot.dtsi
index 33441c7..850fe3a 100644
--- a/arch/x86/dts/u-boot.dtsi
+++ b/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 {
 	};