Correct the typo in 'regulator-name' property.

  apq8096-ifc6640.dtb: v1p05-regulator: 'regulator-name' is a required property
  apq8096-ifc6640.dtb: v1p05-regulator: Unevaluated properties are not allowed ('reglator-name' was unexpected)

Fixes: 6cbdec2d ("arm64: dts: qcom: msm8996: Introduce IFC6640")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230507174516.264936-3-krzysztof.kozlowski@linaro.org