[sonic-py-common] Add recirc_prefix definition (#9471)

This interface type is used for recirculation on chassis.
The definition is required to prevent this interface from being
considered a physical interface in sonic-platform-common and
sonic-platform-daemon

src/sonic-py-common/sonic_py_common/interface.py

@@ -15,6 +15,7 @@
     "Loopback": "Loopback",
     "Ethernet-Backplane": "Ethernet-BP",
     "Ethernet-Inband": "Ethernet-IB",
+    "Ethernet-Recirc": "Ethernet-Rec",
     "Ethernet-SubPort": "Eth",
     "PortChannel-SubPort": "Po"
 }
@@ -57,6 +58,12 @@ def inband_prefix():
     """
     return SONIC_INTERFACE_PREFIXES["Ethernet-Inband"]
 
+def recirc_prefix():
+    """
+    Retrieves the SONIC recirculation port interface name prefix.
+    """
+    return SONIC_INTERFACE_PREFIXES["Ethernet-Recirc"]
+
 def physical_subinterface_prefix():
     """
     Retrieves the SONIC Subinterface name prefix.