This patch corrects iATU programming for cfg1, io and mem viewport.  Enable
ATU only after configuring it.
Signed-off-by: NMohit Kumar <mohit.kumar@st.com>
Signed-off-by: NAjay Khandelwal <ajay.khandelwal@st.com>
Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
Acked-by: NJingoo Han <jg1.han@samsung.com>
Cc: stable@vger.kernel.org