CRAS: iodev_list - Fix argument of cras_iodev_list_dev_is_enabled

This function queries whether a device is enabled, so it should take a
pointer to const iodev.

BUG=chromium:695711
TEST=make check

Change-Id: I14f3460089b66059fd0b9315bc0bf79672769827
Reviewed-on: https://chromium-review.googlesource.com/448241
Commit-Ready: Cheng-Yi Chiang <cychiang@chromium.org>
Tested-by: Cheng-Yi Chiang <cychiang@chromium.org>
Reviewed-by: Dylan Reid <dgreid@chromium.org>
3 files changed