zynqmp: pm: Update PM version and support PM version check

ATF is not checking PM version. Add version check in such
a way that it is compatible with current and newer version
of PM.

Signed-off-by: Rajan Vaja <rajan.vaja@xilinx.com>
Change-Id: Ia095d118121e6f75e8d320e87d5e2018068fa079
3 files changed