clk: qcom: gcc: Update order of clock registration

Update the clock registration of PLL before
the branch and rcgs so as to avoid failure
in clock parent during OPP table population.
Thus update the clock references for the same.

Change-Id: Ib629469969b3df15f734eaeee3dfa25727f3dd05
Signed-off-by: Shefali Jain <shefjain@codeaurora.org>