Mark gpucc clock node as GenPD provider and disable the
graphics GDSC regulator nodes. Update gxclkctl
node to add support for gx_clkctl_gx_gdsc power domain.
While at it, keep the gdsc regulator nodes as it is on rumi platform.
Change-Id: If205c2116841ff3a11ebce4e06ca3067c4a8721b
Signed-off-by: Anaadi Mishra <quic_anaadim@quicinc.com>