AM625: suggestion for default wic image name

Part Number: AM625

Tool/software:

AM62, AM64 SDK download page, the default image name are same for all version like this: tisdk-default-image-am62xx-evm.wic.xz, it cause mess when download multi version on computer to test, need to rename one by one.

https://www.ti.com/tool/download/PROCESSOR-SDK-LINUX-AM62X/09.02.01.09

I would suggest to name it with version like that of AM335x before: am335x-evm-linux-07.03.00.005.img.zip 

https://www.ti.com/tool/download/PROCESSOR-SDK-LINUX-AM335X/07.03.00.005

Since SDK8.02, all changed to one name without version.