Fix a bad error traces

There are couple of places where we are trying to print
the 8 bit value, and it std::cout cannot display those directly,
we need to typecast it to an integer.

Signed-off-by: Manojkiran Eda <manojkiran.eda@gmail.com>
Change-Id: Ibaa212de28e125fd6904c0a7b1f5b5f8c0609d51
diff --git a/libpldmresponder/base.cpp b/libpldmresponder/base.cpp
index dcb6fd6..572f8f1 100644
--- a/libpldmresponder/base.cpp
+++ b/libpldmresponder/base.cpp
@@ -217,7 +217,7 @@
         if (rc || completionCode)
         {
             std::cerr << "Failed to decode setEventReceiver command response,"
-                      << " rc=" << rc << "cc=" << (uint8_t)completionCode
+                      << " rc=" << rc << "cc=" << (unsigned)completionCode
                       << "\n";
             pldm::utils::reportError(
                 "xyz.openbmc_project.bmc.pldm.InternalFailure");