* Protocol filled in flow entry is uint8_t, and while printing it as
  part of stringstream it used to print junk ascii charecter.
  Typecast the same to uint16_t.

Change-Id: I8736cb92258ac46876d4a315501d4b34a3148d75
Merge "* Protocol filled in flow entry is uint8_t, and while printing it as   part of stringstream it used to print junk ascii charecter.   Typecast the same to uint16_t."