arm64: dts: qcom: ipq9574: rename al02-c7 dts to rdp433

Rename the dts after Reference Design Platform(RDP) to adopt
standard naming convention.

Acked-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Devi Priya <quic_devipriy@quicinc.com>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230425084010.15581-7-quic_devipriy@quicinc.com