The clock required to access this GDSC depends on a clock coming from
GPU_CC, which is enabled by default in gpucc probe. Add a phandle to
gpucc to ensure it probes first and enables the required clock.
Change-Id: I5aae1a6a1a3615cf1a8227b839a721a6af945243
Signed-off-by: Mike Tipton <quic_mdtipton@quicinc.com>