board: starfive: spl: Fix the wrong use of CONFIG_IS_ENABLED()

The prefix "SPL_" is not needed when using CONFIG_IS_ENABLED().

Tested-by: Anand Moon <linux.amoon@gmail.com>
Tested-by: E Shattow <lucent@gmail.com>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Fixes: 5ecf9b0b8a75 ("board: starfive: add StarFive VisionFive v2 board support")
Signed-off-by: Hal Feng <hal.feng@starfivetech.com>
diff --git a/board/starfive/visionfive2/spl.c b/board/starfive/visionfive2/spl.c
index 38132ec..cf7f39d 100644
--- a/board/starfive/visionfive2/spl.c
+++ b/board/starfive/visionfive2/spl.c
@@ -110,7 +110,7 @@
 	}
 }
 
-#if CONFIG_IS_ENABLED(SPL_LOAD_FIT)
+#if CONFIG_IS_ENABLED(LOAD_FIT)
 int board_fit_config_name_match(const char *name)
 {
 	/* boot using first FIT config */