More IWYU across app/ & src/ (#32952)

* More IWYU across app/ & src/

* Fix bad path

Author: achaulk-goog

src/app/util/util.h

@@ -21,6 +21,7 @@
 
 #include <app/util/af-types.h>
 #include <app/util/endpoint-config-api.h>
+#include <lib/core/DataModelTypes.h>
 
 void emberAfInit();
 

src/lib/dnssd/platform/DnssdBrowseDelegate.h

@@ -17,6 +17,9 @@
 
 #pragma once
 
+#include <lib/core/CHIPError.h>
+#include <lib/support/DLLUtil.h>
+
 namespace chip {
 namespace Dnssd {
 

src/lib/support/CommonIterator.h

@@ -22,6 +22,8 @@
 
 #pragma once
 
+#include <stddef.h>
+
 namespace chip {
 
 /**

src/protocols/bdx/DiagnosticLogs.h

@@ -18,6 +18,8 @@
 
 #pragma once
 
+#include <stdint.h>
+
 namespace chip {
 namespace bdx {
 namespace DiagnosticLogs {

src/transport/TracingStructs.h

@@ -19,6 +19,7 @@
 #include <lib/support/Span.h>
 #include <transport/Session.h>
 #include <transport/raw/MessageHeader.h>
+#include <transport/raw/PeerAddress.h>
 
 namespace chip {
 namespace Tracing {