dt-bindings: net: qcom,ipa: Use recommended MBN firmware format in DTS example

All Qualcomm firmwares uploaded to linux-firmware are in MBN format,
instead of split MDT.  No functional changes, just correct the DTS
example so people will not rely on unaccepted files.

Signed-off-by: Krzysztof Kozlowski <[email protected]>
Reviewed-by: Alex Elder <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>

Author: krzk

Documentation/devicetree/bindings/net/qcom,ipa.yaml

@@ -239,7 +239,7 @@ examples:
 
                 qcom,gsi-loader = "self";
                 memory-region = <&ipa_fw_mem>;
-                firmware-name = "qcom/sc7180-trogdor/modem/modem.mdt";
+                firmware-name = "qcom/sc7180-trogdor/modem/modem.mbn";
 
                 iommus = <&apps_smmu 0x440 0x0>,
                          <&apps_smmu 0x442 0x0>;