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>

src/include/device/pci_ehci.h

@@ -32,7 +32,7 @@ u8 *pci_ehci_base_regs(pci_devfn_t dev);
 void pci_ehci_dbg_set_port(pci_devfn_t dev, unsigned int port);
 
 #ifndef __PRE_RAM__
-#if !IS_ENABLED(CONFIG_USBDEBUG)
+#if !CONFIG(USBDEBUG)
 #define pci_ehci_read_resources pci_dev_read_resources
 #else
 /* Relocation of EHCI Debug Port BAR