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Implement below PLL related APIs:
- Set PLL parameter
- Get PLL parameter
- Set PLL mode
- Get PLL mode
Signed-off-by: Tejas Patel <tejas.patel@xilinx.com>
Signed-off-by: Jolly Shah <jolly.shah@xilinx.com>
Change-Id: I37749d05cdb73641d32da120d319cf36df97c73f