clang-diagnostic error: error: use of undeclared identifiers

Clang was throwing use of undeclared identifiers for 'std',
'uint8_t', 'uint16_t' and expected unqualified-id errors
due to missing inclusions.

Change-Id: I072eb27ee7a89e215afdd10f095b82c12be62599
Signed-off-by: Pavithra Barithaya <pavithrabarithaya07@gmail.com>
diff --git a/pldmtool/oem/ibm/oem_ibm_state_set.hpp b/pldmtool/oem/ibm/oem_ibm_state_set.hpp
index 361ae3c..2d1ee25 100644
--- a/pldmtool/oem/ibm/oem_ibm_state_set.hpp
+++ b/pldmtool/oem/ibm/oem_ibm_state_set.hpp
@@ -1,6 +1,10 @@
 #include <libpldm/entity.h>
 #include <libpldm/oem/ibm/entity.h>
 #include <libpldm/oem/ibm/state_set.h>
+#include <stdint.h>
+
+#include <map>
+#include <string>
 
 /** @brief PLDM OEM IBM Code Update possible state set values
  */