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/northbridge/amd/agesa/family15tn/northbridge.c b/src/northbridge/amd/agesa/family15tn/northbridge.c
index 7a75997..367feca 100644
--- a/src/northbridge/amd/agesa/family15tn/northbridge.c
+++ b/src/northbridge/amd/agesa/family15tn/northbridge.c
@@ -367,7 +367,7 @@
 	 * we only deal with the 'first' vga card */
 	for (link = dev->link_list; link; link = link->next) {
 		if (link->bridge_ctrl & PCI_BRIDGE_CTL_VGA) {
-#if IS_ENABLED(CONFIG_MULTIPLE_VGA_ADAPTERS)
+#if CONFIG(MULTIPLE_VGA_ADAPTERS)
 			extern struct device *vga_pri; // the primary vga device, defined in device.c
 			printk(BIOS_DEBUG, "VGA: vga_pri bus num = %d bus range [%d,%d]\n", vga_pri->bus->secondary,
 					link->secondary,link->subordinate);