interest: Match data to Interest regardless of FreshnessPeriod/MustBeFresh

When Data is received from the wire it should match Interest with
MustBeFresh even if the Data packet doesn't specify FreshnessPeriod.

Refs: #5270
Change-Id: I2ce4d23062f6346ebcd54e2e3e6e5de5a927e516
diff --git a/tests/unit/interest.t.cpp b/tests/unit/interest.t.cpp
index bbf3af6..055be68 100644
--- a/tests/unit/interest.t.cpp
+++ b/tests/unit/interest.t.cpp
@@ -659,7 +659,7 @@
   BOOST_CHECK_EQUAL(interest->matchesData(*data), true);
 
   interest->setMustBeFresh(true);
-  BOOST_CHECK_EQUAL(interest->matchesData(*data), false); // violates MustBeFresh
+  BOOST_CHECK_EQUAL(interest->matchesData(*data), true);
 
   data->setFreshnessPeriod(1_s);
   BOOST_CHECK_EQUAL(interest->matchesData(*data), true);