powerpc/64s: remove unneeded semicolon

Eliminate the following coccicheck warning:
./arch/powerpc/platforms/powernv/setup.c:160:2-3: Unneeded semicolon

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/1612236877-104974-1-git-send-email-yang.lee@linux.alibaba.com

arch/powerpc/platforms/powernv/setup.c

@@ -157,7 +157,7 @@ static void __init pnv_check_guarded_cores(void)
 	for_each_node_by_type(dn, "cpu") {
 		if (of_property_match_string(dn, "status", "bad") >= 0)
 			bad_count++;
-	};
+	}
 
 	if (bad_count) {
 		printk("  _     _______________\n");