[VOL-1635] This OpenOLT agent supports the BAL V3.0.3.3 SDK.
The APIs call,variables and structures has been changed to BAL v3.0.
OLT activation from voltha-1.7 is successful.

Change-Id: I2096251262ef515a3dbf579eca806fc551bdecf1
diff --git a/agent/src/error_format.h b/agent/src/error_format.h
index 9736456..3928dc1 100644
--- a/agent/src/error_format.h
+++ b/agent/src/error_format.h
@@ -24,8 +24,7 @@
 extern "C"
 {
 #include <bcmos_system.h>
-#include <bal_api.h>
-#include <bal_api_end.h>
+#include <bcmolt_api.h>
 }
 
 grpc::Status bcm_to_grpc_err(bcmos_errno bcm_err, std::string message);