community/kodi: build against libcec4
According to libcec devs, Kodi isn't compatible with anything but libcec 4.0.x. Thus, built it against it rather than libcec 6.0.x.
Binaries are moved to
$pkgname-tools to make sure libs for both libcec4 and regular libcec can be installed alongside each other without having the tools conflict with each other.