soc/intel/common: Add Kconfig SOC_INTEL_CSE_SET_EOP

The do_send_end_of_post function is implemented in the cse_eop.c file.
This change adds the Kconfig SOC_INTEL_CSE_SET_EOP in cse.c to avoid
build issue.

Change-Id: Ib52404d9ad4c01a460e4cfef331c529d2a53337a
Signed-off-by: John Zhao <john.zhao@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63159
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Wonkyu Kim <wonkyu.kim@intel.com>

src/soc/intel/common/block/cse/cse.c

@@ -1212,7 +1212,8 @@ struct cse_notify_phase_data {
  */
 static void cse_final_ready_to_boot(void)
 {
-	cse_send_end_of_post();
+	if (CONFIG(SOC_INTEL_CSE_SET_EOP))
+		cse_send_end_of_post();
 
 	cse_control_global_reset_lock();