mango: update hw_config.sh

Changes for new as3676 driver

Signed-off-by: Michael Bestas <mikeioannina@gmail.com>

Change-Id: I2429942a211a918937952537068a50458d0dc8ca
Remove duplicate keys

Signed-off-by: Michael Bestas <mikeioannina@gmail.com>

Change-Id: I5601b227a8dc2fb1d1ab92575a65e46fc53c8cd1
mango: remove bt script

Signed-off-by: Michael Bestas <mikeioannina@gmail.com>

Change-Id: I76bfddc43fa252a2ca9e9d810b4f3df89224c0fd