clk: qcom: Enable the GPLL0 inputs to DISP and GPU CCs when needed

Currently, the gpll0 input to display and graphics clock
controllers are not enabled when needed. Correct this
behavior.

Change-Id: I6d5b1e2c0b38e810bb481f05ed4663250ef82030
Signed-off-by: Deepak Katragadda <dkatraga@codeaurora.org>