payloads: Replace all IS_ENABLED(CONFIG_XXX) with CONFIG(XXX)

This patch is a raw application of

 find payloads/ -type f | \
   xargs sed -i -e 's/IS_ENABLED\s*(CONFIG_/CONFIG(/g'

Change-Id: I883b03b189f59b5d998a09a2596b0391a2d5cf33
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/31775
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
diff --git a/payloads/libpayload/include/sysinfo.h b/payloads/libpayload/include/sysinfo.h
index bd64cdb..845b7c4 100644
--- a/payloads/libpayload/include/sysinfo.h
+++ b/payloads/libpayload/include/sysinfo.h
@@ -98,7 +98,7 @@
 	void	*vboot_handoff;
 	u32	vboot_handoff_size;
 
-#if IS_ENABLED(CONFIG_LP_ARCH_X86)
+#if CONFIG(LP_ARCH_X86)
 	int x86_rom_var_mtrr_index;
 #endif