drivers: 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/drivers/ddr/fsl/main.c b/drivers/ddr/fsl/main.c
index 888dfb7..d59e947 100644
--- a/drivers/ddr/fsl/main.c
+++ b/drivers/ddr/fsl/main.c
@@ -863,16 +863,16 @@
 	if ((first_ctrl == 0) && (total_memory - 1 > (phys_size_t)~0ULL)) {
 		puts("Detected ");
 		print_size(total_memory, " of memory\n");
-#ifndef CONFIG_SPL_BUILD
+#ifndef CONFIG_XPL_BUILD
 		puts("       "); /* re-align to match init_dram print */
 #endif
 		puts("This U-Boot only supports <= ");
 		print_size((unsigned long long)((phys_size_t)~0ULL)+1, " of DDR\n");
-#ifndef CONFIG_SPL_BUILD
+#ifndef CONFIG_XPL_BUILD
 		puts("       "); /* re-align to match init_dram print */
 #endif
 		puts("You could rebuild it with CONFIG_PHYS_64BIT\n");
-#ifndef CONFIG_SPL_BUILD
+#ifndef CONFIG_XPL_BUILD
 		puts("       "); /* re-align to match init_dram print */
 #endif
 	}