openfimg: compiler: Specify dependencies between dst and src regs

Depending on instruction, particular destination components might depend
on different source components.

Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
openfimg: compiler: Consider dst-src dependencies in liveness analysis

This removes fake data dependencies thanks to considering references on
per-component basis.

Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>