clk: qcom: Enforce ordering between the GCC and multimedia CC drivers

On SDM855, the DISPCC, CAMCC, and VIDEOCC registers are inaccessible
until the GCC driver probes and enables the relevant multimedia AHB
clocks. Enforce this order by getting the AHB clock handles from the
respective multimedia clock controllers explicitly.

Change-Id: I3e2390207f445799f8610bb82d7e4d4d89650866
Signed-off-by: Deepak Katragadda <dkatraga@codeaurora.org>