p505: Copy bluetooth vendor config

The bt_vendor.conf file is needed by every device,altough it's built only for certain devices (crespo,grouper,maguro etc). Using a prebuilt one is needed.

Change-Id: Id7f011e5544af564c838134a2cc29c765d91224a
Fix common include priority for p505

PRODUCT_COPY_FILES: First definition wins if the file name is the same. Most specific first.
DEVICE_PACKAGE_OVERLAYS: Last definition wins. Most specific last.
CONFIG := xxx: Last definition wins. Most specific last.

TESTED ON: configs/wpa_supplicant.conf

Change-Id: I2787095ef86af4577eba1b7e37b93898704a105c
p505: Use tiny config

Change-Id: I1d550917cecbdb42060542a45b16dd5f41249594