Fix include path for system/bt

BUG: 196026708
Test: TH
Merged-In: I7c316a80b6051136c7d47be0c1061463c66623f0
Merged-In: I367715ede438e5f762c14edb6fd208465a22909b
Change-Id: I10e909788f51c3be8b65433048835bb582447b68
1 file changed
tree: 61595d0ff21d813cf1ae539aeee525e2fb5b9e70
  1. conf/
  2. include/
  3. src/
  4. Android.mk