Turned off the watchdog for the spec PN tests.

Former-commit-id: 7eb87ad7fb819f26996a2384615674ccd8ad1b26

tests/spec/Makefile

@@ -3,6 +3,7 @@ progs=bzip_black.peasoup mcf_black.peasoup libquantum_black.peasoup sjeng_black.
 ps_analyze_flags=" --step ilr=off\
                --step stratafy_with_pc_confine=on\
                --step create_binary_script=on\
+	       --step watchdog=off\
                --step heaprand=off\
                --step concolic=off\
                --step double_free=off\