interconnect: qcom: sm8350: Add missing link between nodes

There is a link between the GEM NoC and C NoC nodes, which is currently
missing from the topology. Let's add it to allow consumers request paths
that use this link.

Reported-by: Alex Elder <elder@linaro.org>
Tested-by: Alex Elder <elder@linaro.org>
Link: https://lore.kernel.org/r/20210401094435.28937-1-georgi.djakov@linaro.org


Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>