dt-bindings: pinctrl: qcom,sc8280xp-tlmm: allow 'bias-bus-hold'

The controller supports 'bias-bus-hold' so add it to the binding.
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230316105800.18751-1-johan+linaro@kernel.orgSigned-off-by: Linus Walleij <linus.walleij@linaro.org>

Documentation/devicetree/bindings/pinctrl/qcom,sc8280xp-tlmm.yaml

@@ -104,6 +104,7 @@ $defs:
                 usb1_phy, usb1_sbrx, usb1_sbtx, usb1_usb4, usb2phy_ac,
                 vsense_trigger ]
 
+      bias-bus-hold: true
       bias-disable: true
       bias-pull-down: true
       bias-pull-up: true