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/cpu/x86/lapic.h

@@ -45,7 +45,7 @@ static __always_inline unsigned long lapicid(void)
 	return lapic_read(LAPIC_ID) >> 24;
 }
 
-#if !IS_ENABLED(CONFIG_AP_IN_SIPI_WAIT)
+#if !CONFIG(AP_IN_SIPI_WAIT)
 /* If we need to go back to sipi wait, we use the long non-inlined version of
  * this function in lapic_cpu_init.c
  */
@@ -142,7 +142,7 @@ void do_lapic_init(void);
 /* See if I need to initialize the local APIC */
 static inline int need_lapic_init(void)
 {
-	return IS_ENABLED(CONFIG_SMP) || IS_ENABLED(CONFIG_IOAPIC);
+	return CONFIG(SMP) || CONFIG(IOAPIC);
 }
 
 static inline void setup_lapic(void)