clk: qcom: gcc-lagoon: Add clock gcc_npu_pll0_main_div_clk_src

Add support for gcc_npu_pll0_main_div_clk_src and reparent
its child clocks.

Change-Id: Ia3845c28fe8986edd2e24a6a82a77ad7e6ecd5f5
Signed-off-by: Veera Vegivada <vvegivad@codeaurora.org>