devicetree: bindings: Add sata port phy config parameters in ahci-ceva

This patch adds device tree bindings for sata port phy parameters
in the ahci-ceva.txt file.

Signed-off-by: Anurag Kumar Vulisha <anuragku@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Tejun Heo <tj@kernel.org>