arm64: dts: qcom: support both DVT and PVT boards for RB5

There are minor differences between DVT (development) and PVT
(production) series of RB5 platform. The major difference is the setup
of WSA codecs. These two editions use different codecs and different
uniq IDs. Provide a separate dts file for DVT board revision.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>