Add USB Vendor ID for ECS

Change-Id: Ib2fa70204d37f53dc642091eb927d865ddc585b5
diff --git a/usb_vendors.c b/usb_vendors.c
index e132c67..68bb232 100644
--- a/usb_vendors.c
+++ b/usb_vendors.c
@@ -153,6 +153,8 @@
 #define VENDOR_ID_NOOK          0x2080
 // Qisda's USB Vendor ID
 #define VENDOR_ID_QISDA         0x1D45
+// ECS's USB Vendor ID
+#define VENDOR_ID_ECS           0x03fc
 
 
 /** built-in vendor list */
@@ -216,6 +218,7 @@
     VENDOR_ID_MTK,
     VENDOR_ID_NOOK,
     VENDOR_ID_QISDA,
+    VENDOR_ID_ECS,
 };
 
 #define BUILT_IN_VENDOR_COUNT    (sizeof(builtInVendorIds)/sizeof(builtInVendorIds[0]))