contexthub-nano: Include headers for 4.4 kernels am: 2ad8a91c21 am: b8cb1a2a4c am: 0ed308dfff

Original change: https://android-review.googlesource.com/c/device/google/contexthub/+/2781288

Change-Id: Ice3a00a742a53f1288096f535a7b0e281a1b13d6
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>