ARM: dts: qcom: msm8226: Add BAM DMUX Ethernet/IP device

BAM DMUX is used as the network interface to the modem.

Reviewed-by: Stephan Gerhold <stephan.gerhold@linaro.org>
Signed-off-by: Luca Weiss <luca@lucaweiss.eu>
Link: https://lore.kernel.org/r/20250217-msm8226-modem-v5-10-2bc74b80e0ae@lucaweiss.eu


Signed-off-by: Bjorn Andersson <andersson@kernel.org>