urushi: update hw_config.sh

Changes for new as3676 drivers

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

Change-Id: I2d7d96ba517dbecec29d753f5e0eb21fbaef7fff
urushi: remove bt script

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

Change-Id: I2a1df554037acdee81be5b0c4db7db1681aae6a2