clk: hisilicon: Terminate clk_div_table with sentinel element

clk: hisilicon: Terminate clk_div_table with sentinel element

In order that the end of a clk_div_table can be detected, it must be
terminated with a sentinel element (.div = 0).

Fixes: 6c81966107dc0 ("clk: hisilicon: Add clock driver for hi3559A SoC")
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Link: https://lore.kernel.org/r/20220218000922.134857-4-j.neuschaefer@gmx.net
Signed-off-by: Stephen Boyd <sboyd@kernel.org>