Add OSGi fix to what's new (#588)

Author: jordan-smith721

source/whats-new.txt

@@ -39,6 +39,10 @@ The 5.2.1 driver patch release includes the following changes:
 - Fixes an issue that caused applications built with Quarkus to throw a
   ``java.lang.UnsatisfiedLinkError`` when initializing ``libmongocrypt``
   bindings.
+- Fixes a bug that caused the ``mongodb-driver-core`` package to error when
+  deployed to an OSGi runtime. The `` Import-Package
+  org.mongodb:mongodb-driver-core`` manifest attribute no longer requires the
+  ``com.oracle.svm.core.annotate.*`` packages.
 
 .. _java-version-5.2: