arm64: zynqmp: Move dts zcu102 to zcu102-revA

Not using board revision is causing confusion about which board is
supported and tested. Mark dts files exactly with board revision which
was tested. When new board revision arives it can be symlink if SW view
is the same. Also add -revX suffix to compatible string because user space
tools are parsing this string and can change behavior depends of board
revision.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>