remoteproc: qcom: select AUXILIARY_BUS

The QCOM_PD_MAPPER implementation made Qualcomm remoteproc drivers use
auxiliary bus for the pd-mapper subdevice. Add necessary dependency.

Reported-by: Mark Brown <broonie@kernel.org>
Fixes: 5b9f51b2 ("remoteproc: qcom: enable in-kernel PD mapper")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Chris Lew <quic_clew@quicinc.com>
Link: https://lore.kernel.org/r/20240626-qcom-pd-mapper-fix-deps-v1-2-644678dc4663@linaro.org


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