noux_fork: raise MAX_COUNT to 1000

To see the output of both, forker and fork, we must give the test
more time on OKL4 as fork seems to be not so fast with this kernel.

ref #989

ports/src/test/noux_fork/test.cc

@@ -8,7 +8,7 @@
 #include <unistd.h>
 #include <errno.h>
 
-enum { MAX_COUNT = 100 };
+enum { MAX_COUNT = 1000 };
 
 int main(int, char **)
 {