The MC virt interconnect in SDX65 DTSI does not have reg.  Similarly in
the downstream DTS, thus assume this is an interconnect without own
dedicated IO address space.  This fixes dtbs_check warnings like:

  qcom-sdx65-mtp.dtb: interconnect-mc-virt: 'reg' is a required property
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20230827114026.47806-1-krzysztof.kozlowski@linaro.orgSigned-off-by: Georgi Djakov <djakov@kernel.org>