d2: use commonized defconfig

Change-Id: I73943ecef48bce13242e4aaeee62b86669c04bdb
d2-common: only build selinux in kernel if we want it

Change-Id: I7df8ebe41321f467a4419cbef65fbd9942d16543
ApexQ: add 5 second delay to hci_qcomm_init

Avoid hilarious kernel errors like APPS_RIVA_BT_CMD open failed by not
running what is supposed to be a user space tool before the kernel is
ready

Change-Id: I2ad9cf5ec6512dbc50f951a056bc80bb2c97a95f