overlay: use config-based tcp buffer sizes

Change-Id: I05249cd35e3e44ee54d49040765e0067067cc70c
g3: update hardware key overlays

Change-Id: I68e8ce81ee5a709a7f765054b382eac61f95b747
g3: disable HardwareWakeKeys overlay

Change-Id: Ia1431b19c6d90510dc41c14999285d6f47e215b8