Find7: Fix touchboost frequency

Change-Id: I932fa31c2b9d651e498f2c6423193ea613abf752
Find7: Disable Adaptive Display support

Adaptive Display checks for /sys/class/graphics/fb%d/ad node, which
is present in our case, but read-only for some case, meaning hwc/writeback
is unable to write the correct sysfs values during video playback, hence
causing overlay issues and pipe blocks.

Until this is sorted out, disable Adaptive Display altogether to fix media
playout on Find7a/Find7s devices.

Change-Id: Ie968106adedec23ef68dbf772de25403d0134730