Workaround for project-chip#12821, session ID collissions

Add a central session ID allocator in mSystemState so aware consumers
can avoid collision.

src/controller/CHIPDeviceControllerSystemState.h

@@ -32,6 +32,7 @@
 #include <app/DeviceControllerInteractionModelDelegate.h>
 #include <credentials/FabricTable.h>
 #include <protocols/secure_channel/MessageCounterManager.h>
+#include <protocols/secure_channel/SessionIDAllocator.h>
 #include <transport/TransportMgr.h>
 #include <transport/raw/UDP.h>
 #if CONFIG_DEVICE_LAYER
@@ -140,6 +141,7 @@ class DeviceControllerSystemState
 #if CONFIG_NETWORK_LAYER_BLE
  Ble::BleLayer * BleLayer() { return mBleLayer; };
 #endif
+ SessionIDAllocator * GetSessionIDAllocator() { return &mIDAllocator; }
 
 private:
  DeviceControllerSystemState(){};
@@ -156,6 +158,7 @@ class DeviceControllerSystemState
  secure_channel::MessageCounterManager * mMessageCounterManager = nullptr;
  FabricTable * mFabrics = nullptr;
  DeviceControllerInteractionModelDelegate * mIMDelegate = nullptr;
+ SessionIDAllocator mIDAllocator;
 
  std::atomic<uint32_t> mRefCount{ 1 };