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Add API to check availability of given API in ATF
as well as platform management controller and returns
the supported version number.
Signed-off-by: Ravi Patel <ravi.patel@xilinx.com>
Signed-off-by: Jolly Shah <jolly.shah@xilinx.com>
Change-Id: I608b38f60b36c4d105b7a205ecb8b02de0c00f3c