meta-google: recipes-google: Add static dev CA and specific user

Add Feature:
1. default-users: Add static User "Megapede" without password
2. default-ca-dev: Add static dev CA

Note:
  1. CA PATH:
     meta-google\recipes-google\default-ca-dev\default-ca-dev\certs\authority
     All CAs under the folder will be encapsulated into the firmware image

Signed-off-by: Alan Kuo <Alan_Kuo@quantatw.com>
Change-Id: I8de613ef31f7e2eab27f142bb3c0ea939693d6eb
3 files changed