build UPDATE abi base version

Keep some NBC changes in the current SO version
since it is still in devel.
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4e03a7e..202716c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -352,7 +352,7 @@
 
 # generate API/ABI report
 if ("${BUILD_TYPE_UPPER}" STREQUAL "ABICHECK")
-    lib_abi_check(netconf2 "${headers}" ${LIBNETCONF2_SOVERSION_FULL} cfc6809f914a811c01af14f3f8c848cc4f251100)
+    lib_abi_check(netconf2 "${headers}" ${LIBNETCONF2_SOVERSION_FULL} 3a7bfeb45f6d82aaf7a9c540d52a28690193b765)
 endif()
 
 # source files to be covered by the 'format' target and a test with 'format-check' target