Bluedroid: adjust buildcfg to use common header

Change-Id: Ib531ee52140334d11ec9bae114e1251e019cb736
(cherry picked from commit 37da97c347458951ca7cb7e84d182f22625503e9)
beni: re-enable ldpi overlay

Change-Id: I3851e006ed92d8c839baebfc1d17f1d61e52ae6a