inputcontrol: Refresh devices when sensitivity changes

This is needed because chrome doesn't call --refresh when it starts
up, but it does set sensitivity.

BUG=chromium:403953
TEST=Manually tested that custom accel curves persist across a reboot

Change-Id: I12529510f67052816f02e98ec9b37fe4bf6e6498
Reviewed-on: https://chromium-review.googlesource.com/212510
Reviewed-by: Charles Mooney <[email protected]>
Commit-Queue: Andrew de los Reyes <[email protected]>
Tested-by: Andrew de los Reyes <[email protected]>
1 file changed