TI K3 AM654x/J721E CPSW Switch mode support

configname: CONFIG_TI_K3_AM65_CPSW_SWITCHDEV

Linux Kernel Configuration
└─>Device Drivers
└─>Network device support
└─>Ethernet driver support
└─>TI K3 AM654x/J721E CPSW Switch mode support
In linux kernel since version 5.2 (release Date: 2019-07-07)  
This enables switchdev support for TI K3 CPSWxG Ethernet
Switch. Enable this driver to support hardware switch support for AM65
CPSW NUSS driver.