clk: qcom: gcc-lahaina: Enable gpu_memnoc_gfx and gpu_snoc_dvm_gfx always

SMMU hw voting did not tie these 2 clocks. Although these
clocks are default enabled on boot, SW needs to explicitly
make sure to keep them always enabled to keep smmu access.
These clks will automatically turn on/off along with
CX_GDSC so no power hit.

Change-Id: I4fb82589f63c0a321465e249e54f94be7e5449a3
Signed-off-by: Vivek Aknurwar <viveka@codeaurora.org>