board: 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/board/compulab/cl-som-imx7/common.h b/board/compulab/cl-som-imx7/common.h
index bc19867..5b29763 100644
--- a/board/compulab/cl-som-imx7/common.h
+++ b/board/compulab/cl-som-imx7/common.h
@@ -18,7 +18,7 @@
 PADS_SET_PROT(espi1_pads);
 #endif /* CONFIG_SPI */
 
-#ifndef CONFIG_SPL_BUILD
+#ifndef CONFIG_XPL_BUILD
 #ifdef CONFIG_FSL_ESDHC_IMX
 PADS_SET_PROT(usdhc3_emmc_pads);
 #endif /* CONFIG_FSL_ESDHC_IMX */
@@ -28,4 +28,4 @@
 #endif /* CONFIG_FEC_MXC */
 PADS_SET_PROT(usb_otg1_pads);
 PADS_SET_PROT(wdog_pads);
-#endif /* !CONFIG_SPL_BUILD */
+#endif /* !CONFIG_XPL_BUILD */