VOL-2348 Update voltha-openolt-adapter to latest voltha-lib-go;
I/O Errors should trigger unreadiness;
Update tech profile mocks

Change-Id: If245ab38050962af5992e8f0b67823c39e9522e8
diff --git a/go.sum b/go.sum
index 29e55c1..8fda01b 100644
--- a/go.sum
+++ b/go.sum
@@ -196,8 +196,8 @@
 github.com/onsi/ginkgo v1.6.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=
 github.com/onsi/gomega v1.4.2 h1:3mYCb7aPxS/RU7TI1y4rkEn1oKmPRjNJLNEXgw7MH2I=
 github.com/onsi/gomega v1.4.2/go.mod h1:ex+gbHU/CVuBBDIJjb2X0qEXbFg53c61hWP/1CpauHY=
-github.com/opencord/voltha-lib-go/v2 v2.2.23 h1:iDB6R0aAPeirqHaNAQDtGHtDyb9V/R73wAp2hrbVViQ=
-github.com/opencord/voltha-lib-go/v2 v2.2.23/go.mod h1:CoY2amUEsbO2grCbJRk7G+Fl1Xb7vQLw3/uGLbTz0Ms=
+github.com/opencord/voltha-lib-go/v2 v2.2.25 h1:8YZE2caHN7niAd0ojzegSQpjH+y7/83CkWaZJCojf/M=
+github.com/opencord/voltha-lib-go/v2 v2.2.25/go.mod h1:CoY2amUEsbO2grCbJRk7G+Fl1Xb7vQLw3/uGLbTz0Ms=
 github.com/opencord/voltha-protos/v2 v2.1.0/go.mod h1:6kOcfYi1CadWowFxI2SH5wLfHrsRECZLZlD2MFK6WDI=
 github.com/opencord/voltha-protos/v2 v2.1.2 h1:/eX+kXhANbzxTpBHgC6vjwBUGRKKvGUOQRDdDgROp9E=
 github.com/opencord/voltha-protos/v2 v2.1.2/go.mod h1:6kOcfYi1CadWowFxI2SH5wLfHrsRECZLZlD2MFK6WDI=