platform: generic: check if CPU node is enabled

Ignore CPU nodes in FDT which are not enabled.

Signed-off-by: Jan Remes <jan.remes@codasip.com>
Reviewed-by: Xiang W <wxjstz@126.com>
Reviewed-by: Anup Patel <anup@brainfault.org>

platform/generic/platform.c

@@ -103,6 +103,9 @@ unsigned long fw_platform_init(unsigned long arg0, unsigned long arg1,
 		if (SBI_HARTMASK_MAX_BITS <= hartid)
 			continue;
 
+		if (!fdt_node_is_enabled(fdt, cpu_offset))
+			continue;
+
 		generic_hart_index2id[hart_count++] = hartid;
 	}