Remove ICanController from manifest

ICanController implementations is switched to use a VINTF manifest
fragment.  Also, this CL declares ICanBus instaces with fqname to avoid
a version conflict.

Bug: 203414344
Test: m -j check-vintf-all
Change-Id: Ibe5d145f9e5b29e0a3b15275cb85e16e09c88824