CDD: Clarify faketouch requirements for multi-displays

- Moved 7.2.5/C-1-7 to under 7.2.4 as TOUCHSCREEN_NOTOUCH is that
 it *only* supports fake touch and not any of the
 android.hardware.touch.* features (e.g. a normal
 desktop computer without a touchscreen attached).
- Clarified a case for multi-display devices, that may have different
touch implementations per display.

Change-Id: Id125d3b829e6c9b55cce3a64cbe8409f83820228
bug:128322943
1 file changed