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
diff --git a/plat/xilinx/zynqmp/pm_service/pm_defs.h b/plat/xilinx/zynqmp/pm_service/pm_defs.h
index ee31c92..3324431 100644
--- a/plat/xilinx/zynqmp/pm_service/pm_defs.h
+++ b/plat/xilinx/zynqmp/pm_service/pm_defs.h
@@ -18,7 +18,7 @@
  * (PM_VERSION_MAJOR << 16) | PM_VERSION_MINOR
  */
 #define PM_VERSION_MAJOR	1
-#define PM_VERSION_MINOR	0
+#define PM_VERSION_MINOR	1
 
 #define PM_VERSION	((PM_VERSION_MAJOR << 16) | PM_VERSION_MINOR)