dt-bindings: leds: qcom-wled: fix number of addresses

On PM660L, PMI8994 and PMI8998, the WLED has two address spaces.  This
also fixes dtbs_check warnings like:

  arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dtb: leds@d800: reg: [[55296], [55552]] is too long

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220825125410.232377-3-krzysztof.kozlowski@linaro.org


Signed-off-by: Rob Herring <robh@kernel.org>