hayabusa: improve touchscreen accuracy and enable simple remote keys

With the proper kernel config and this clearpad.idc file,touchscreen
of hayabusa will function just like official Sony firmware-really accurate.
And the missing Simple Remote (appkey) kaylayout is added.Maybe it's needed
for headphone buttons.

Change-Id: I407cc05a9afc73ae4442cd038911c2b600adc5f7