ARM: dts: msm: Correct the gdsc_bimc_smmu clocks property on MSM COBALT

The bimc_smmu_axi_clk is modelled as part of the multimedia
clock controller and not GCC. Correct this.

Change-Id: I02ccc6d9cc57628e586e6dd9bb71282c107e28dd
Signed-off-by: Deepak Katragadda <dkatraga@codeaurora.org>