Allow restart_syscall

restart_syscall is used by the kernel whenever a syscall with a
timeout is interrupted.  Whitelist it in seccomp to prevent
processes being killed with SIGSYS when being ptraced.

Bug: 34586922
Test: hwui_unit_tests
Change-Id: Ic47dcad33f3082eb5673c3c67fe17200d4daaf74
1 file changed