soc: qcom: mention intentionally broken module autoloading

Qualcomm PMIC ChargerPD ULOG and RPM Master Statistics drivers are
solely for debugging purposes and should not be autoloaded as modules.
Add comments to annotate missing MODULE_DEVICE_TABLE.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20240410184522.271889-1-krzk@kernel.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>