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/intel/broadwell/systemagent.c b/src/soc/intel/broadwell/systemagent.c
index 3912688..aef1d1c 100644
--- a/src/soc/intel/broadwell/systemagent.c
+++ b/src/soc/intel/broadwell/systemagent.c
@@ -384,7 +384,7 @@
 	reserved_ram_resource(dev, index++, (0xc0000 >> 10),
 				(0x100000 - 0xc0000) >> 10);
 
-	if (IS_ENABLED(CONFIG_CHROMEOS))
+	if (CONFIG(CHROMEOS))
 		chromeos_reserve_ram_oops(dev, index++);
 
 	*resource_cnt = index;