clk: clps711x: Terminate clk_div_table with sentinel element

clk: clps711x: 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: 605635ecb946a ("clk: Add CLPS711X clk driver")
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Link: https://lore.kernel.org/r/20220218000922.134857-5-j.neuschaefer@gmx.net
Signed-off-by: Stephen Boyd <sboyd@kernel.org>