clk: socfpga: stratix10: use new parent data scheme

Convert, where possible, the stratix10 clock driver to the new parent
data scheme by specifying the parent data for clocks that have multiple
parents.

Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
Link: https://lkml.kernel.org/r/20200512181647.5071-1-dinguyen@kernel.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>