msm8960-common: Add Vibrator Intensity preview when changing setting

Add a quick preview of the Intensity when changing values

Change-Id: Ie67fa4d038230822c9f5792b4485257ff9ab5573
msm8960-common:   Fix whitespace

Tab went out in the 80's

Change-Id: Iacc4d82de4d536e1fccaf9562496ede1549673bb