dt-bindings: mfd: qcom,spmi-pmic: Add pm8916 vm-bms and lbc

PM8916 (and probably some other similar pmics) have hardware blocks for
battery monitoring and charging. Add patterns for respecive nodes so the
devicetree for those blocks can be validated properly.

Signed-off-by: Nikita Travkin <nikita@trvn.ru>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20231120-pm8916-dtsi-bms-lbc-v4-1-4f91056c8252@trvn.ru


Signed-off-by: Lee Jones <lee@kernel.org>