PCIe configuration space should be passed through reg property, rather than
through ranges property.  This patch does the correction for SPEAr13XX
SOCs.
Signed-off-by: NPratyush Anand <pratyush.anand@st.com>
Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
Acked-by: NMohit Kumar <mohit.kumar@st.com>