arm64: dts: qcom: ipq6018: Fix gpio-ranges property

There must be three parameters in gpio-ranges property. Fixes this not
very helpful error message:

  OF: /soc/pinctrl@1000000: (null) = 3 found 3

Fixes: 1e827785 ("arm64: dts: Add ipq6018 SoC and CP01 board support")
Cc: Sricharan R <sricharan@codeaurora.org>
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Tested-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/8a744cfd96aff5754bfdcf7298d208ddca5b319a.1638862030.git.baruch@tkos.co.il