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: I38da6bc20a5ceabf652ceeefb56ddd52b352d1ed
1 file changed
tree: 2989d3859d82d98e4a692bb543fde64211da52d0
  1. overlay/
  2. AndroidProducts.mk
  3. BoardConfig.mk
  4. mini_armv7a.mk
  5. vendorsetup.sh