contexthub-nano: Include headers for 4.4 kernels am: 2ad8a91c21 am: bce5fe70a9

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

Change-Id: I173df64bd57991f2c8639fee24fbf23166689c2f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>