This change also fixes a missing include for memcmp().

Bug 14642677

Change-Id: I4207d259b9d7b20e0cb35ded65bacd5c2d882087
Reviewed-on: https://swiftshader-review.googlesource.com/3884Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>