Include standard headers when allocating space am: 027eb382f9

Original change: https://android-review.googlesource.com/c/platform/system/update_engine/+/2568975

Change-Id: Icc549288da7de8fb84e0c52ca7f195d278711f08
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>