dt-bindings: pinctrl: qcom: lpass-lpi: correct description of second reg

dt-bindings: pinctrl: qcom: lpass-lpi: correct description of second reg

The description of second IO address is a bit confusing.  It is supposed
to be the MCC range which contains the slew rate registers, not the slew
rate register base.  The Linux driver then accesses slew rate register
with hard-coded offset (0xa000).

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20230302155255.857065-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>