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This patch adds new zynqmp-pm api to provide read/write access to
CSU or PMU global registers.
Signed-off-by: Kalyani Akula <kalyania@xilinx.com>
Signed-off-by: Rajan Vaja <rajan.vaja@xilinx.com>
Change-Id: I4fd52eb732fc3e6a8bccd96cad7dc090b2161042