clk: qcom: Reconfigure trion and regera PLL during set_rate

During set_rate read the L value to determine
if the configuration is required again, otherwise the
PLL would fail to lock or enable due to lost/missing
values.

Change-Id: Iec4f85e5e2a2faaa956020da91965254b45e5eaf
Signed-off-by: Veera Vegivada <vvegivad@codeaurora.org>