feat(nxp-dcfg): add Chassis 3 support

Add support for Chassis 3.

Signed-off-by: Biwen Li <biwen.li@nxp.com>
Signed-off-by: Jiafei Pan <Jiafei.Pan@nxp.com>
Change-Id: I85cf68d4f1db81bf344e34dce13799ae173aa23a
diff --git a/include/drivers/nxp/dcfg/dcfg.h b/include/drivers/nxp/dcfg/dcfg.h
index 524450a..cf29b12 100644
--- a/include/drivers/nxp/dcfg/dcfg.h
+++ b/include/drivers/nxp/dcfg/dcfg.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2018-2021 NXP
+ * Copyright 2018-2022 NXP
  *
  * SPDX-License-Identifier: BSD-3-Clause
  *
@@ -12,7 +12,7 @@
 
 #if defined(CONFIG_CHASSIS_2)
 #include <dcfg_lsch2.h>
-#elif defined(CONFIG_CHASSIS_3_2)
+#elif defined(CONFIG_CHASSIS_3_2) || defined(CONFIG_CHASSIS_3)
 #include <dcfg_lsch3.h>
 #endif