Revert "Disable ath6kl and build from compat"

This reverts commit 2048cbf3c4f3600c4208dbdba2904d5c891679dc.
Don't build in kernle ath6kl

Change-Id: Ie23d57605cd512d01db8ece07d6f50ef0791410b
[PATCH 1/2] ft6306: dos2unix & remove trailing whitespace

Change-Id: If871f716a80527e9ab59f8c17fc7a03640d8dfad
ft6306: support home and menu virtual keys

Add home key to the left side of the back button and menu button
to the right side.

Change /system/usr/keylayout/ft6306.kl to
key 102    HOME
key 158    BACK
key 139    MENU

Change-Id: I8fe151303a9735b50df225e2ea782fce1f8979aa