BoardConfigCommon: Switch to bcmdhd driver

* Don't set BOARD_WLAN_DEVICE to bcmdhd, or else wpa_supplicant
  will enable P2P, which is not supported in the old firmware.
* Don't set BOARD_WLAN_DEVICE_REV to 4330_b1, as that will install
  incompatible firmware.

Change-Id: I235a3b51909cb1fe0552e942bc33c82ec4669c55
common.mk: Switch to 16bpp surfaces & clean up dalvik settings
libgralloc: update and clean up

Change-Id: Id54af3d73f9fc9eff4915f54c5fc0f87b72042c7
hwcomposer: update to hwcomposer 1.0 API

Dummy functions borrowed from: https://github.com/trevd/android_hardware_broadcom_bcm2708

Change-Id: I7d2d5d3c16a0b55b48407297556a64092c50b0ae