[compiler-rt][scudo] Check for failing prctl call am: 8b8287926c am: 0057cd0904 am: 579395cbc4 am: 6f37db2d03 am: ce4153e963

Original change: https://android-review.googlesource.com/c/platform/external/scudo/+/1850693

Change-Id: I55c6db45c7457f5b02a4b89b0a43f605f5be4867