Change in coreboot[master]: soc/intel/common/cse: Add `cse_send_end_of_post()` a public function

[Angel Pons (Code Review)]

Attention is currently required from: Subrata Banik, Tim Wawrzynczak, Nick Vaccaro, Werner Zeh, Patrick Rudolph, EricR Lai.
Angel Pons has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/61519 )

Change subject: soc/intel/common/cse: Add `cse_send_end_of_post()` a public function
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Patch Set 3:

(1 comment)

File src/soc/intel/common/block/cse/cse_eop.c:

https://review.coreboot.org/c/coreboot/+/61519/comment/4cc40205_c4e1ef3b 
PS3, Line 210: 	/* FIXME: Add check to skip sending EOP cmd multiple time */
Since EOP is only sent in ramstage, you can use a static variable:

static bool eop_sent = false;
 if (eop_sent) {
    printk(BIOS_ERR, "EOP already sent\n");
    return;
 }
 eop_sent = true;

This logic would go in `set_cse_end_of_post()`, not here.