ARM: dts: dra7: Enable workaround for errata i870 in PCIe host mode

Add ti,syscon-unaligned-access property to PCIe RC nodes to set
appropriate bits in CTRL_CORE_SMA_SW_7 register to enable workaround for
errata i870.
Signed-off-by: Vignesh R <vigneshr@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/boot/dts/dra7.dtsi

@@ -336,6 +336,7 @@ pcie1_rc: pcie@51000000 {
 						<0 0 0 2 &pcie1_intc 2>,
 						<0 0 0 3 &pcie1_intc 3>,
 						<0 0 0 4 &pcie1_intc 4>;
+				ti,syscon-unaligned-access = <&scm_conf1 0x14 1>;
 				status = "disabled";
 				pcie1_intc: interrupt-controller {
 					interrupt-controller;
@@ -387,6 +388,7 @@ pcie2_rc: pcie@51800000 {
 						<0 0 0 2 &pcie2_intc 2>,
 						<0 0 0 3 &pcie2_intc 3>,
 						<0 0 0 4 &pcie2_intc 4>;
+				ti,syscon-unaligned-access = <&scm_conf1 0x14 2>;
 				pcie2_intc: interrupt-controller {
 					interrupt-controller;
 					#address-cells = <0>;