arch: Use CONFIG_XPL_BUILD instead of CONFIG_SPL_BUILD

Use the new symbol to refer to any 'SPL' build, including TPL and VPL

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/x86/cpu/broadwell/Makefile b/arch/x86/cpu/broadwell/Makefile
index 3e1f76d..6c6d0ed 100644
--- a/arch/x86/cpu/broadwell/Makefile
+++ b/arch/x86/cpu/broadwell/Makefile
@@ -6,12 +6,12 @@
 obj-$(CONFIG_$(SPL_TPL_)X86_32BIT_INIT) += cpu_full.o
 
 ifdef CONFIG_SPL
-ifndef CONFIG_SPL_BUILD
+ifndef CONFIG_XPL_BUILD
 obj-y += cpu_from_spl.o
 obj-y += cpu_full.o
 obj-y += refcode.o
 endif
-ifndef CONFIG_SPL_BUILD
+ifndef CONFIG_XPL_BUILD
 # obj-y += cpu_from_spl.o
 obj-y += adsp.o
 obj-y += sata.o
diff --git a/arch/x86/cpu/broadwell/cpu_full.c b/arch/x86/cpu/broadwell/cpu_full.c
index c43fb7a..529dab1 100644
--- a/arch/x86/cpu/broadwell/cpu_full.c
+++ b/arch/x86/cpu/broadwell/cpu_full.c
@@ -84,7 +84,7 @@
 	[0x11] = 128,
 };
 
-#if defined(CONFIG_SPL_BUILD) && !defined(CONFIG_TPL_BUILD)
+#if defined(CONFIG_XPL_BUILD) && !defined(CONFIG_TPL_BUILD)
 int arch_cpu_init(void)
 {
 	return 0;
diff --git a/arch/x86/cpu/broadwell/pch.c b/arch/x86/cpu/broadwell/pch.c
index 2c8b738..5b61474 100644
--- a/arch/x86/cpu/broadwell/pch.c
+++ b/arch/x86/cpu/broadwell/pch.c
@@ -606,7 +606,7 @@
 			return broadwell_pch_early_init(dev);
 		else
 			return broadwell_pch_init(dev);
-	} else if (IS_ENABLED(CONFIG_SPL) && !IS_ENABLED(CONFIG_SPL_BUILD)) {
+	} else if (IS_ENABLED(CONFIG_SPL) && !IS_ENABLED(CONFIG_XPL_BUILD)) {
 		return broadwell_pch_init(dev);
 	} else {
 		return 0;