arm64: dts: qcom: sm6115: Add GPU nodes

Introduce nodes for the A610 GPU and its GMU wrapper along with the
speedbin fuse entry in QFPROM.

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20230620-topic-gpu_tablet_disp-v2-1-0538ea1beb0b@linaro.org


Signed-off-by: Bjorn Andersson <andersson@kernel.org>