BT Tweaks

Change-Id: I2388d29528803c929ab4e39c993ee9de9547b5ed
Lets test LEGACY_FB option since we're still using a bit old EGL

Change-Id: Ia06f9b554c1e842457c6d7afb7b3cbb8fd08f8fc
ramdisk: a quick workaround for akmd not running

Change-Id: I633416b1c9372410329407c4728324731a3974a6