soc: qcom: cmd-db: allow loading as a module

This patch enables Command DB driver to be loaded as a module. Command
DB is inherent to RPMH interaction and as such would never be unloaded.
Add supress_bind_attrs to make it a permanently loaded module.

Reviewed-by: John Stultz <john.stultz@linaro.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Tested-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Lina Iyer <ilina@codeaurora.org>
Link: https://lore.kernel.org/r/20201001154144.5226-1-ilina@codeaurora.org


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