Remove space, silence -Wdeprecated-literal-operator. am: 9c7f1121f5

Original change: https://android-review.googlesource.com/c/platform/external/vixl/+/2969002

Change-Id: I51db44e109a7134234c4c97814501e7ce30132b7
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>