[voqinband]Support for inband port as regular port (sonic-net#145)

Signed-off-by: vedganes <vedavinayagam.ganesan@nokia.com>

Inband port is avaialable in PORT table. But regular port handlings are
not applicable for Inband port. Changes in this PR are to avoid regular
port handling on Inband port for ledd script.

sonic-ledd/scripts/ledd

@@ -10,7 +10,7 @@ import sys
 
 from sonic_py_common import daemon_base
 from sonic_py_common import multi_asic
-from sonic_py_common.interface import backplane_prefix
+from sonic_py_common.interface import backplane_prefix, inband_prefix
 from swsscommon import swsscommon
 
 #============================= Constants =============================
@@ -96,7 +96,7 @@ class DaemonLedd(daemon_base.DaemonBase):
             fvp_dict = dict(fvp)
 
             if op == "SET" and "oper_status" in fvp_dict:
-                if not key.startswith(backplane_prefix()):
+                if not key.startswith(backplane_prefix()) and not key.startswith(inband_prefix()):
                     self.led_control.port_link_state_change(key, fvp_dict["oper_status"])
         else:
             return 4