[Add mtd tool]

[Description]
Add mtd tool
1. porting from colgin
2. for firmware upgrade

[Release-log]

22 files changed
tree: 62a9499aa1507adb46f4cf5099f75ce1c98f40ad
  1. classes/
  2. conf/
  3. recipes-connectivity/
  4. recipes-devtools/
  5. recipes-kernel/