Allow the waitpid syscall

This version is sometimes used eg by glibc on x86

Signed-off-by: Justin Cormack <justin.cormack@unikernel.com>

daemon/execdriver/native/seccomp_default.go

@@ -1549,6 +1549,11 @@ var defaultSeccompProfile = &configs.Seccomp{
 			Action: configs.Allow,
 			Args:   []*configs.Arg{},
 		},
+		{
+			Name:   "waitpid",
+			Action: configs.Allow,
+			Args:   []*configs.Arg{},
+		},
 		{
 			Name:   "write",
 			Action: configs.Allow,