arm64: dts: qcom: sdm845: Add "mhi" region to the PCIe nodes

The "mhi" region contains the debug registers that could be used to monitor
the PCIe link transitions.
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230316081117.14288-17-manivannan.sadhasivam@linaro.org

arch/arm64/boot/dts/qcom/sdm845.dtsi

@@ -2291,8 +2291,9 @@ pcie0: pci@1c00000 {
 			reg = <0 0x01c00000 0 0x2000>,
 			      <0 0x60000000 0 0xf1d>,
 			      <0 0x60000f20 0 0xa8>,
-			      <0 0x60100000 0 0x100000>;
-			reg-names = "parf", "dbi", "elbi", "config";
+			      <0 0x60100000 0 0x100000>,
+			      <0 0x01c07000 0 0x1000>;
+			reg-names = "parf", "dbi", "elbi", "config", "mhi";
 			device_type = "pci";
 			linux,pci-domain = <0>;
 			bus-range = <0x00 0xff>;
@@ -2396,8 +2397,9 @@ pcie1: pci@1c08000 {
 			reg = <0 0x01c08000 0 0x2000>,
 			      <0 0x40000000 0 0xf1d>,
 			      <0 0x40000f20 0 0xa8>,
-			      <0 0x40100000 0 0x100000>;
-			reg-names = "parf", "dbi", "elbi", "config";
+			      <0 0x40100000 0 0x100000>,
+			      <0 0x01c0c000 0 0x1000>;
+			reg-names = "parf", "dbi", "elbi", "config", "mhi";
 			device_type = "pci";
 			linux,pci-domain = <1>;
 			bus-range = <0x00 0xff>;