drm/msm/adreno: Add support for X185 GPU

Add support in drm/msm driver for the Adreno X185 gpu found in
Snapdragon X1 Elite chipset.

Signed-off-by: Akhil P Oommen <quic_akhilpo@quicinc.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/601399/


Signed-off-by: Rob Clark <robdclark@chromium.org>