samus: Fixed a bug in host_sensor_id_to_motion_sensor
samus: Fixed a bug in host_sensor_id_to_motion_sensor

BUG=chrome-os-partner:32368
BRANCH=ToT
TEST=Verified on Samus.

cd /sys/bus/iio/devices/iio:device0
cat *peak_scale

Signed-off-by: Sheng-Liang Song <20a24593f82e573953076a0eeaf8f3cfb817a534@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/220991
Reviewed-by: Alec Berg <1a4429eeda29095a12e19a73405f80f5b7f37a63@chromium.org>
(cherry picked from commit ac1c82a35bd0fd41233ec0b0ba13b32f2ea4a331)
Signed-off-by: Duncan Laurie <70662b43bc1a20b57ded72a2b08be88dd0da4841@chromium.org>

Change-Id: I2b0606e55bfa5e498255c6c42240ee3f9236e4f1
Reviewed-on: https://chromium-review.googlesource.com/222246
Tested-by: Duncan Laurie <70662b43bc1a20b57ded72a2b08be88dd0da4841@chromium.org>
Reviewed-by: Duncan Laurie <70662b43bc1a20b57ded72a2b08be88dd0da4841@chromium.org>
Commit-Queue: Duncan Laurie <70662b43bc1a20b57ded72a2b08be88dd0da4841@chromium.org>
Reviewed-by: Alec Berg <1a4429eeda29095a12e19a73405f80f5b7f37a63@chromium.org>
Reviewed-by: Sheng-liang Song <20a24593f82e573953076a0eeaf8f3cfb817a534@chromium.org>

thehobn/ec,thehobn/ec,thehobn/ec,thehobn/ec