mesa: enable freedreno for sm8250
mesa: enable freedreno for sm8250

Enable freedreno `PACKAGECONFIG` for sm8250 boards.

Signed-off-by: Dmitry Baryshkov <2dcd7ecf02101ef1dca344c0511f3ffb180907c2@linaro.org>

ndechesne/meta-qcom,ndechesne/meta-qcom,ndechesne/meta-qcom