ARM: dts: qcom-*-sony*: Mention SONY board names in DT filenames

SONY phones/tables are based on a common board ('platform'). Devices
based on the same are often close to identical. Mention their association
in filenames, like it's done in arm64 DTs.

Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220415115633.575010-2-konrad.dybcio@somainline.org