NetconfAccess: reuse netconf libyang context

Change-Id: Ib8d4b35ddd0ecc24e9ff4066e10eaf71eb175bee
diff --git a/src/yang_schema.cpp b/src/yang_schema.cpp
index 999f33a..ddd6f37 100644
--- a/src/yang_schema.cpp
+++ b/src/yang_schema.cpp
@@ -58,6 +58,12 @@
 {
 }
 
+YangSchema::YangSchema(std::shared_ptr<libyang::Context> lyCtx)
+    : m_context(lyCtx)
+{
+
+}
+
 YangSchema::~YangSchema() = default;
 
 void YangSchema::addSchemaString(const char* schema)