Change daily clock log to informational severity

The event log was using a severity of Error, and because the PEL message
registry had a severity of Informational, phosphor-log-manager would
spit out a trace about how the severities mismatched every time the PEL
was created.

Change-Id: Ia7559a5c3cfdf6ad93277783bfd85cb639af25a0
Signed-off-by: Matt Spinler <spinler@us.ibm.com>
diff --git a/extensions/phal/create_pel.hpp b/extensions/phal/create_pel.hpp
index ffd1315..a6256f5 100644
--- a/extensions/phal/create_pel.hpp
+++ b/extensions/phal/create_pel.hpp
@@ -55,8 +55,10 @@
  *
  *  @param[in]  event - the event type
  *  @param[in] ffdcData - failure data to append to PEL
+ *  @param[in] severity - severity of the log
  */
-void createPEL(const std::string& event, const FFDCData& ffdcData = {});
+void createPEL(const std::string& event, const FFDCData& ffdcData = {},
+               const Severity severity = Severity::Error);
 
 /**
  * @class FFDCFile