ARM: dts: qcom: pm8941: rename misc node name

The spmi-pmic bindings is now using usb-detect@ for this node, so adjust
the dts to match.

Signed-off-by: Luca Weiss <luca@z3ntu.xyz>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20221031175717.942237-3-luca@z3ntu.xyz