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/mainboard/emulation/qemu-i440fx/northbridge.c b/src/mainboard/emulation/qemu-i440fx/northbridge.c
index 1493565d..852800d 100644
--- a/src/mainboard/emulation/qemu-i440fx/northbridge.c
+++ b/src/mainboard/emulation/qemu-i440fx/northbridge.c
@@ -166,7 +166,7 @@
 		     IORESOURCE_ASSIGNED;
 }
 
-#if IS_ENABLED(CONFIG_GENERATE_SMBIOS_TABLES)
+#if CONFIG(GENERATE_SMBIOS_TABLES)
 static int qemu_get_smbios_data16(int handle, unsigned long *current)
 {
 	struct smbios_type16 *t = (struct smbios_type16 *)*current;
@@ -229,7 +229,7 @@
 	.enable_resources	= NULL,
 	.init			= NULL,
 	.scan_bus		= pci_domain_scan_bus,
-#if IS_ENABLED(CONFIG_GENERATE_SMBIOS_TABLES)
+#if CONFIG(GENERATE_SMBIOS_TABLES)
 	.get_smbios_data	= qemu_get_smbios_data,
 #endif
 };