ADTRAN OLT: Change manufacturer to VOLTHA Project

Change-Id: Ic42e5c8c5fbe9ae8d8b70247473418a52ee3e6a9
diff --git a/voltha/adapters/adtran_olt/adtran_device_handler.py b/voltha/adapters/adtran_olt/adtran_device_handler.py
index 4d471b3..4740f93 100644
--- a/voltha/adapters/adtran_olt/adtran_device_handler.py
+++ b/voltha/adapters/adtran_olt/adtran_device_handler.py
@@ -695,7 +695,7 @@
 
         ld = LogicalDevice(
             # NOTE: not setting id and datapath_id will let the adapter agent pick id
-            desc=ofp_desc(mfr_desc=device.vendor,
+            desc=ofp_desc(mfr_desc='VOLTHA Project',
                           hw_desc=device.hardware_version,
                           sw_desc=version,
                           serial_num=device.serial_number,
diff --git a/voltha/adapters/adtran_olt/adtran_olt.py b/voltha/adapters/adtran_olt/adtran_olt.py
index 804ee56..421eb6b 100644
--- a/voltha/adapters/adtran_olt/adtran_olt.py
+++ b/voltha/adapters/adtran_olt/adtran_olt.py
@@ -52,7 +52,7 @@
         self.descriptor = Adapter(
             id=self.name,
             vendor='Adtran Inc.',
-            version='1.25',
+            version='1.26',
             config=AdapterConfig(log_level=LogLevel.INFO)
         )
         log.debug('adtran_olt.__init__', adapter_agent=adapter_agent)