Correct SPL use of TARGET_PG_WCOM_EXPU1

This converts 1 usage of this option to the non-SPL form, since there is
no SPL_TARGET_PG_WCOM_EXPU1 defined in Kconfig

Signed-off-by: Simon Glass <sjg@chromium.org>
Aleksandar Gerasimovski <aleksandar.gerasimovski@hitachienergy.com>
diff --git a/board/keymile/pg-wcom-ls102xa/pg-wcom-ls102xa.c b/board/keymile/pg-wcom-ls102xa/pg-wcom-ls102xa.c
index e005ece..c65cd9c 100644
--- a/board/keymile/pg-wcom-ls102xa/pg-wcom-ls102xa.c
+++ b/board/keymile/pg-wcom-ls102xa/pg-wcom-ls102xa.c
@@ -79,7 +79,7 @@
 	qrio_wdmask(KM_PAXK_RST, true);
 #endif
 
-#if CONFIG_IS_ENABLED(TARGET_PG_WCOM_EXPU1)
+#if IS_ENABLED(CONFIG_TARGET_PG_WCOM_EXPU1)
 	qrio_prstcfg(WCOM_TMG_RST, PRSTCFG_POWUP_UNIT_RST);
 	qrio_wdmask(WCOM_TMG_RST, true);