* Stub the application copyright framebuffer api
As we currently don't support multi layers on vi/nvnflinger, this PR
implement a stub of this API.
* Address Cyuubi's comments
* Add IPC checks and comments for future reversing
Co-authored-by: Ac_K <Acoustik666@gmail.com>
Co-authored-by: Ac_K <Acoustik666@gmail.com>