core/platform: Actually disable fast-reboot on P8

There was an attempt. It was not successful.

Fixes: 14f709b ("Disable fast-reset for POWER8")
Cc: skiboot-stable@lists.ozlabs.org
Signed-off-by: Oliver O'Halloran <oohall@gmail.com>
Reviewed-by: Vasant Hegde <hegdevasant@linux.vnet.ibm.com>
Signed-off-by: Oliver O'Halloran <oohall@gmail.com>

core/platform.c

@@ -54,13 +54,15 @@ static int64_t opal_cec_reboot(void)
 
 	opal_quiesce(QUIESCE_HOLD, -1);
 
-	if (proc_gen == proc_gen_p8 && nvram_query_eq_safe("fast-reset","1")) {
+	if (proc_gen == proc_gen_p8) {
 		/*
 		 * Bugs in P8 mean fast reboot isn't 100% reliable when cores
 		 * are busy, so only attempt if explicitly *enabled*.
 		 */
-		fast_reboot();
-	} else if (!nvram_query_eq_safe("fast-reset","0")) {
+		if (nvram_query_eq_safe("fast-reset", "1"))
+			fast_reboot();
+
+	} else if (!nvram_query_eq_safe("fast-reset", "0")) {
 		/* Try fast-reset unless explicitly disabled */
 		fast_reboot();
 	}