The lpass-sc7180 driver can be built as a module but is lacking a
MODULE_DEVICE_TABLE.  This means it won't auto-load.  Fix this
oversight.

Fixes: 24caf8d9 ("ASoC: qcom: lpass-sc7180: Add platform driver for lpass audio")
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://lore.kernel.org/r/20200916111545.1.I4c3758817d94c433bafeac344a395e21ea6657e3@changeidSigned-off-by: Mark Brown <broonie@kernel.org>