define BOARD_USE_LEGACY_UI for PDK build

- coresponding Android.mk will be changed later to use legacy UI when
  this is set true.

Change-Id: I47a2a1d677656be246b64387ae8c470abce02ac9
1 file changed
tree: 4dd89c60ae41b053e776440117a143bc5df36c85
  1. overlay/
  2. AndroidProducts.mk
  3. BoardConfig.mk
  4. mini_mips.mk
  5. vendorsetup.sh