add inital keepSubscription feature (#10339)

diff --git a/src/app/tests/TestMessageDef.cpp b/src/app/tests/TestMessageDef.cpp
index fea44ad..460708d 100644
--- a/src/app/tests/TestMessageDef.cpp
+++ b/src/app/tests/TestMessageDef.cpp
@@ -914,7 +914,7 @@
     subscribeRequestBuilder.MaxIntervalSeconds(3);
     NL_TEST_ASSERT(apSuite, subscribeRequestBuilder.GetError() == CHIP_NO_ERROR);
 
-    subscribeRequestBuilder.KeepExistingSubscriptions(true);
+    subscribeRequestBuilder.KeepSubscriptions(true);
     NL_TEST_ASSERT(apSuite, subscribeRequestBuilder.GetError() == CHIP_NO_ERROR);
 
     subscribeRequestBuilder.IsProxy(true);
@@ -962,7 +962,7 @@
     err = subscribeRequestParser.GetMaxIntervalSeconds(&maxIntervalSeconds);
     NL_TEST_ASSERT(apSuite, maxIntervalSeconds == 3 && err == CHIP_NO_ERROR);
 
-    err = subscribeRequestParser.GetKeepExistingSubscriptions(&keepExistingSubscription);
+    err = subscribeRequestParser.GetKeepSubscriptions(&keepExistingSubscription);
     NL_TEST_ASSERT(apSuite, keepExistingSubscription && err == CHIP_NO_ERROR);
 
     err = subscribeRequestParser.GetIsProxy(&isProxy);