plat: xilinx: zynqmp: Move zynqmp_private.h to include directory

Move zynqmp_private.h to platform specific include directory.
Also, rename it to plat_private.h instead of having platform
name. So, it can be used to common source files which needs
platform specific data.

Signed-off-by: Tejas Patel <tejas.patel@xilinx.com>
Reviewed-by: Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com>
Signed-off-by: Jolly Shah <jollys@xilinx.com>
diff --git a/plat/xilinx/zynqmp/bl31_zynqmp_setup.c b/plat/xilinx/zynqmp/bl31_zynqmp_setup.c
index 01cd781..8ecd6d7 100644
--- a/plat/xilinx/zynqmp/bl31_zynqmp_setup.c
+++ b/plat/xilinx/zynqmp/bl31_zynqmp_setup.c
@@ -12,10 +12,9 @@
 #include <common/debug.h>
 #include <drivers/console.h>
 #include <plat_arm.h>
+#include <plat_private.h>
 #include <plat/common/platform.h>
 
-#include "zynqmp_private.h"
-
 #define BL31_END (unsigned long)(&__BL31_END__)
 
 static entry_point_info_t bl32_image_ep_info;