Changed the type of vlan id from 16 bit to 32 bit

Vlan interface is having vlanid as 32 bit but the create
interface was having 16 bit so this commit changes the
type of vlanid property in the create interface to 32 bit.

Change-Id: I423fdcee86c2d78653fc11d426a241e7d979e16b
Signed-off-by: Ratan Gupta <ratagupt@in.ibm.com>
diff --git a/network_manager.cpp b/network_manager.cpp
index 013a61b..bce6731 100644
--- a/network_manager.cpp
+++ b/network_manager.cpp
@@ -83,7 +83,7 @@
 
 }
 
-void Manager::vLAN(IntfName interfaceName, uint16_t id)
+void Manager::vLAN(IntfName interfaceName, uint32_t id)
 {
 }