[Add mtd tool]

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

[Release-log]

22 files changed
tree: e5d86a073af5f16ed6bb15c30ac9c5857762e504
  1. classes/
  2. conf/
  3. recipes-connectivity/
  4. recipes-devtools/
  5. recipes-kernel/