Merge files from jdk11u/jdk-11+28 into the expected_upstream branch
List of files:
ojluni/src/main/java/jdk/net/ExtendedSocketOptions.java
ojluni/src/main/java/sun/nio/ch/AllocatedNativeObject.java
ojluni/src/main/java/sun/nio/ch/FileLockImpl.java
ojluni/src/main/java/sun/nio/ch/Invoker.java
ojluni/src/main/java/sun/nio/ch/MembershipKeyImpl.java
ojluni/src/main/java/sun/nio/ch/MembershipRegistry.java
ojluni/src/main/java/sun/nio/ch/PipeImpl.java
ojluni/src/main/java/sun/nio/ch/PollSelectorProvider.java
ojluni/src/main/java/sun/nio/ch/UnixAsynchronousServerSocketChannelImpl.java
Generated by tools/expected_upstream/ojluni_refresh_files.py
Test: N/A
Change-Id: If84ab2c57f92dcd17166048a0dcddc5aaa781c0f