Add const to some funcs and fix a comment

Signed-off-by: puvvadar <puvvadar@amazon.com>

Code/Framework/AzNetworking/AzNetworking/UdpTransport/UdpNetworkInterface.cpp

@@ -306,7 +306,7 @@ namespace AzNetworking
                 }
                 else if (handledPacket == PacketDispatchResult::Pending)
                 {
-                    // If we did not handle due to a handshake pending completion, defer it
+                    // If we did not handle due to a handshake pending completion, skip it
                     continue;
                 }
                 else if (connection->GetConnectionState() != ConnectionState::Disconnecting)

Gems/Multiplayer/Code/Source/Editor/MultiplayerEditorConnection.h

@@ -33,7 +33,7 @@ namespace Multiplayer
         MultiplayerEditorConnection();
         ~MultiplayerEditorConnection() = default;
 
-        bool IsHandshakeComplete(){ return true; };
+        bool IsHandshakeComplete() const { return true; };
         bool HandleRequest(AzNetworking::IConnection* connection, const AzNetworking::IPacketHeader& packetHeader, MultiplayerEditorPackets::EditorServerInit& packet);
         bool HandleRequest(AzNetworking::IConnection* connection, const AzNetworking::IPacketHeader& packetHeader, MultiplayerEditorPackets::EditorServerReady& packet);
         

Gems/Multiplayer/Code/Source/MultiplayerSystemComponent.cpp

@@ -441,7 +441,7 @@ namespace Multiplayer
         MultiplayerPackets::SyncConsole m_syncPacket;
     };
 
-    bool MultiplayerSystemComponent::IsHandshakeComplete()
+    bool MultiplayerSystemComponent::IsHandshakeComplete() const
     {
         return m_didHandshake;
     }

Gems/Multiplayer/Code/Source/MultiplayerSystemComponent.h

@@ -76,7 +76,7 @@ namespace Multiplayer
         int GetTickOrder() override;
         //! @}
 
-        bool IsHandshakeComplete();
+        bool IsHandshakeComplete() const;
         bool HandleRequest(AzNetworking::IConnection* connection, const AzNetworking::IPacketHeader& packetHeader, MultiplayerPackets::Connect& packet);
         bool HandleRequest(AzNetworking::IConnection* connection, const AzNetworking::IPacketHeader& packetHeader, MultiplayerPackets::Accept& packet);
         bool HandleRequest(AzNetworking::IConnection* connection, const AzNetworking::IPacketHeader& packetHeader, MultiplayerPackets::ReadyForEntityUpdates& packet);