pldm: Remove unnecessary type casting in logs

This commit removes the unnecessary type casting of values of the
journal logs based on supported types mentioned in LG2 documentation
[1].

Testing: Verified the debug traces to correct.

'''
For Instance:
Earlier -
error(”TYPE = {TYPE} “, “TYPE”, static_cast<unsigned>(PLDM_STATE_EFFECTER_PDR));
Journal trace -
May 27 08:16:51 p10bmc pldmd[931]: TYPE = 11

After Correction -
error(”TYPE = {TYPE}“, “TYPE”, PLDM_STATE_EFFECTER_PDR);
Journal trace -
May 27 08:16:51 p10bmc pldmd[931]: TYPE = Enum(11)
'''

[1]: https://github.com/openbmc/phosphor-logging/blob/master/docs/structured-logging.md#lg2

Change-Id: Ia649ecd4ecbb73c421f7844885f58a6835805719
Signed-off-by: Riya Dixit <riyadixitagra@gmail.com>
diff --git a/fw-update/update_manager.cpp b/fw-update/update_manager.cpp
index 428613b..2567996 100644
--- a/fw-update/update_manager.cpp
+++ b/fw-update/update_manager.cpp
@@ -57,7 +57,7 @@
     {
         error(
             "Failed to open the PLDM fw update package file '{FILE}', error - {ERROR}.",
-            "ERROR", unsigned(errno), "FILE", packageFilePath.c_str());
+            "ERROR", errno, "FILE", packageFilePath);
         package.close();
         std::filesystem::remove(packageFilePath);
         return -1;