arm64: dts: qcom: msm8996: drop not documented adreno properties

arm64: dts: qcom: msm8996: drop not documented adreno properties

These properties aren't documented nor implemented in the driver.
Drop them.

Fixes warnings as:
$ make dtbs_check DT_SCHEMA_FILES=Documentation/devicetree/bindings/display/msm/gpu.yaml
...
arch/arm64/boot/dts/qcom/msm8996-mtp.dt.yaml: gpu@b00000: 'qcom,gpu-quirk-fault-detect-mask', 'qcom,gpu-quirk-two-pass-use-wfi' do not match any of the regexes: 'pinctrl-[0-9]+'
	From schema: Documentation/devicetree/bindings/display/msm/gpu.yaml
...

Fixes: 69cc3114ab0f ("arm64: dts: Add Adreno GPU definitions")
Signed-off-by: David Heidelberg <david@ixit.cz>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20211030100413.28370-1-david@ixit.cz