Differentiate sdk snapshot include dir by os type am: ed62b9cc am:...

Differentiate sdk snapshot include dir by os type am: ed62b9cc am: a7d4a055 am: fd1e267e am: 787db2a9

Original change: https://android-review.googlesource.com/c/platform/build/soong/+/1360457

Change-Id: Ife97e1112213a2b0099bc18feb9d8e8a78eb87a6