Add sysroot property to Darwin prebuilts.

Bug: 169112496
Bug: 168729404
Test: Darwin build finds correct variant dependencies when building.
Change-Id: I1dd0c1dbfbc028efc257ebe4043f99d2740f5ed7
1 file changed
tree: 86d34e25ba2d1e47e9c26653016099b6a5ce4df4
  1. bootstrap/
  2. darwin-x86/
  3. linux-x86/
  4. Android.bp
  5. OWNERS