FROMGIT: arm64: dts: qcom: pm8150b: add Light Pulse Generator device node

Add device node defining LPG/PWM block on PM8150B PMIC chip.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220505145102.1432670-2-dmitry.baryshkov@linaro.org
(cherry picked from commit efe9185c
 git://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux.git

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Signed-off-by: Bhupesh Sharma <bhupesh.sharma@linaro.org>