QCLINUX: clk: qcom: videocc-sa8775: disable HW CTRL for video GDSC

There is a video hung issue when GDSC is kept in hardware control mode. This is a workaround to keep the GDSC in software mode till the hung is rootcaused and fix.

Change-Id: I0ff09be40abd9bc7a6943ed188060b7794fd51cb
Signed-off-by: Vikash Garodia <quic_vgarodia@quicinc.com>