global: Use CONFIG_XPL_BUILD instead of CONFIG_SPL_BUILD

Complete this rename for all directories outside arch/ board/ drivers/
and include/

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/common/console.c b/common/console.c
index c9e206a..2222470 100644
--- a/common/console.c
+++ b/common/console.c
@@ -191,7 +191,7 @@
 		/* Assign the new device (leaving the existing one started) */
 		stdio_devices[file] = dev;
 
-#ifndef CONFIG_SPL_BUILD
+#ifndef CONFIG_XPL_BUILD
 		/*
 		 * Update monitor functions
 		 * (to use the console stuff by other applications)