ARM: dts: qcom: align OPP table node name with DT schema

Bindings expect OPP tables to start with "opp-table".

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230109112221.102473-1-krzysztof.kozlowski@linaro.org