coreboot: Replace all IS_ENABLED(CONFIG_XXX) with CONFIG(XXX)

This patch is a raw application of

 find src/ -type f | xargs sed -i -e 's/IS_ENABLED\s*(CONFIG_/CONFIG(/g'

Change-Id: I6262d6d5c23cabe23c242b4f38d446b74fe16b88
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/31774
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
diff --git a/src/soc/cavium/cn81xx/soc.c b/src/soc/cavium/cn81xx/soc.c
index 2358d71..98166b0 100644
--- a/src/soc/cavium/cn81xx/soc.c
+++ b/src/soc/cavium/cn81xx/soc.c
@@ -370,7 +370,7 @@
 	/* Init ECAM, MDIO, PEM, PHY, QLM ... */
 	bdk_boot();
 
-	if (IS_ENABLED(CONFIG_PAYLOAD_FIT_SUPPORT)) {
+	if (CONFIG(PAYLOAD_FIT_SUPPORT)) {
 		struct device_tree_fixup *dt_fixup;
 
 		dt_fixup = malloc(sizeof(*dt_fixup));
@@ -381,7 +381,7 @@
 		}
 	}
 
-	if (IS_ENABLED(CONFIG_ARM64_USE_ARM_TRUSTED_FIRMWARE))
+	if (CONFIG(ARM64_USE_ARM_TRUSTED_FIRMWARE))
 		soc_init_atf();
 }