PCI: spear: Pass config resource through reg property

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: Pratyush Anand <pratyush.anand@st.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Mohit Kumar <mohit.kumar@st.com>

diff --cc arch/arm/boot/dts/spear1310.dtsi
Simple merge

diff --cc arch/arm/boot/dts/spear1340.dtsi
Simple merge

diff --cc drivers/pci/host/pcie-spear13xx.c
Simple merge