dt-bindings: clock: xilinx: Add reset GPIO for VCU

It is marked as optional as some of the ZynqMP designs are having vcu_reset
(reset pin of VCU IP) driven by proc_sys_reset, proc_sys_reset is another
PL IP driven by the PS pl_reset. So, here the VCU reset is not driven by
axi_gpio or PS GPIO so there will be no GPIO entry.

Signed-off-by: Rohit Visavalia <rohit.visavalia@amd.com>
Link: https://lore.kernel.org/r/20250107044038.100945-3-rohit.visavalia@amd.com


Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>