dt2w: Make enable to set touch counts (Max : 10)

Now you can set doubletap2wake's touch counts by doubletap2wake's setting number.

0 : Off
1~9 : Wake by n+1 taps. (n = Your setting)

Example)
0 : Doubletap2wake will not working.
1 : Wake by double taps.
2 : Wake by triple taps.
9 : Wake by 10 taps.

Recognizing Time : 100ms * 'touch counts'

So when you set to 9, you can wake your device by 10 taps in 1 second. :p