1. add cv181x functions 2. Delete some useless files and add .gitignore Change-Id: Iea2b2fa43b5a1152e5e99fb32b88f8d2c249251a
1. add cvitek folders to u-boot-2021.10 2. add cv183x/cv182x part 3. add cv181x/cv180x part Change-Id: I6dc2e5ff509dbab16bd60bfb3fd61852da5e01f6