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/southbridge/amd/cimx/sb800/spi.c b/src/southbridge/amd/cimx/sb800/spi.c
index 90fe8f3..d6eb1e2 100644
--- a/src/southbridge/amd/cimx/sb800/spi.c
+++ b/src/southbridge/amd/cimx/sb800/spi.c
@@ -135,7 +135,7 @@
 
 int chipset_volatile_group_begin(const struct spi_flash *flash)
 {
-	if (!IS_ENABLED(CONFIG_SB800_IMC_FWM))
+	if (!CONFIG(SB800_IMC_FWM))
 		return 0;
 
 	ImcSleep();
@@ -144,7 +144,7 @@
 
 int chipset_volatile_group_end(const struct spi_flash *flash)
 {
-	if (!IS_ENABLED(CONFIG_SB800_IMC_FWM))
+	if (!CONFIG(SB800_IMC_FWM))
 		return 0;
 
 	ImcWakeup();