Generate VNDK independent image variant with cc genrule

Image variants for CC modules were covered to work without VNDK version
from previous commit, but CC genrule has its own image variant rule, so
it should be also updated to generate vendor / product image variant
without VNDK version.

Bug: 316829758
Test: m nothing --no-skip-soong-tests passed
Test: AOSP cuttlefish build succeeded

Change-Id: I425dd425efcc57c7ff8f9964b303ad6f539c3b57