1. add cv181x functions 2. Delete some useless files and add .gitignore Change-Id: Iea2b2fa43b5a1152e5e99fb32b88f8d2c249251a
repo: https://github.com/u-boot/u-boot commit: d80bb749fab53da72c4a0e09b8c2d2aaa3103c91 Change-Id: Ie6434426e1ec15bc08bb1832798e371f3fd5fb29