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/soc/intel/broadwell/finalize.c

@@ -56,7 +56,7 @@ const struct reg_script system_agent_finalize_script[] = {
 };
 
 const struct reg_script pch_finalize_script[] = {
-#if !IS_ENABLED(CONFIG_SPI_CONSOLE)
+#if !CONFIG(SPI_CONSOLE)
 	/* Set SPI opcode menu */
 	REG_MMIO_WRITE16(RCBA_BASE_ADDRESS + SPIBAR_OFFSET + SPIBAR_PREOP,
 			 SPI_OPPREFIX),