[processor] Add a timeout to turbostat collection

The `turbostat` command has been seen to hit the default 5-minute
timeout for reasons that are not immedately obvious. The behavior
pattern is that the `turbostat --debug sleep 10` command this plugin
captures may not exit until some form of input is received, at which
point the command "fails successfully" with the following message:

`turbostat: get_rapl_counters: failed to read perf_data (8 1): Success`

Prevent this condition from holding up sos report execution by adding a
timeout to this collection.

Resolves: #3753

Signed-off-by: Jake Hunsaker <[email protected]>

sos/report/plugins/processor.py

@@ -66,9 +66,11 @@ def setup(self):
             "cpupower frequency-info",
             "cpupower info",
             "cpupower idle-info",
-            "turbostat --debug sleep 10",
         ], cmd_as_tag=True, pred=cpupower_pred)
 
+        self.add_cmd_output("turbostat --debug sleep 10", cmd_as_tag=True,
+                            pred=cpupower_pred, timeout=15)
+
         if '86' in self.policy.get_arch():
             self.add_cmd_output("x86info -a")