ARM: dts: qcom: sdx55: remove wrong unit address from RPMH RSC clocks

The clock controller of RPMH RSC does not have 'reg' property, so should
not have unit address.

Fixes: bae2f597 ("ARM: dts: qcom: Add SDX65 platform and MTP board support")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220411085935.130072-2-krzysztof.kozlowski@linaro.org