ata: libata-eh: Make ata_eh_followup_srst_needed() return a bool

ata_eh_followup_srst_needed() returns an integer used as a boolean. So
change this function to return that type.

No functional changes.

Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Niklas Cassel <cassel@kernel.org>
Link: https://lore.kernel.org/r/20250711082158.220047-1-dlemoal@kernel.org
Signed-off-by: Niklas Cassel <cassel@kernel.org>

Author: damien-lemoal

drivers/ata/libata-eh.c

@@ -2781,15 +2781,15 @@ static int ata_do_reset(struct ata_link *link, ata_reset_fn_t reset,
 	return reset(link, classes, deadline);
 }
 
-static int ata_eh_followup_srst_needed(struct ata_link *link, int rc)
+static bool ata_eh_followup_srst_needed(struct ata_link *link, int rc)
 {
 	if ((link->flags & ATA_LFLAG_NO_SRST) || ata_link_offline(link))
-		return 0;
+		return false;
 	if (rc == -EAGAIN)
-		return 1;
+		return true;
 	if (sata_pmp_supported(link->ap) && ata_is_host_link(link))
-		return 1;
-	return 0;
+		return true;
+	return false;
 }
 
 int ata_eh_reset(struct ata_link *link, int classify,