gn2bp: Add required include_dirs for `aidl` files am: b30d3716a3

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2327968

Change-Id: I655207b23b2d5feb88c3667f7e904b252e19b320
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>