arm64: dts: qcom: msm8992-*: Fix vdd_lvs1_2-supply typo

"make dtbs_check" complains about the missing "-supply" suffix for
vdd_lvs1_2 which is clearly a typo, originally introduced in the
msm8994-smd-rpm.dtsi file and apparently later copied to
msm8992-xiaomi-libra.dts:

msm8992-lg-bullhead-rev-10/101.dtb: pm8994-regulators: 'vdd_lvs1_2'
does not match any of the regexes:
  '.*-supply$', '^((s|l|lvs|5vs)[0-9]*)|(boost-bypass)|(bob)$', 'pinctrl-[0-9]+'
From schema: regulator/qcom,smd-rpm-regulator.yaml

msm8992-xiaomi-libra.dtb: pm8994-regulators: 'vdd_lvs1_2'
does not match any of the regexes:
  '.*-supply$', '^((s|l|lvs|5vs)[0-9]*)|(boost-bypass)|(bob)$', 'pinctrl-[0-9]+'
From schema: regulator/qcom,smd-rpm-regulator.yaml

Reported-by: Rob Herring <robh@kernel.org>
Cc: Konrad Dybcio <konrad.dybcio@somainline.org>
Fixes: f3b2c99e ("arm64: dts: Enable onboard SDHCI on msm8992")
Fixes: 0f5cdb31

 ("arm64: dts: qcom: Add Xiaomi Libra (Mi 4C) device tree")
Signed-off-by: Stephan Gerhold <stephan.gerhold@kernkonzept.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@somainline.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220627135938.2901871-1-stephan.gerhold@kernkonzept.com