HSD #14015549958: dt-bindings: clk: agilex5: Add Agilex5 clock bindings

commit d241277cb88793166f6e57871f6f3a2598204fc8 from
https://github.com/altera-opensource/linux-socfpga.git



Add Intel SoCFPGA Agilex5 clock definition.

Signed-off-by: Teh Wen Ping <wen.ping.teh@intel.com>
Signed-off-by: Liwei Song <liwei.song@windriver.com>