[core] use NumericLimits<> constants (#9875)

Use `NumericLimits<UintType>::kMax` constants in core files.

src/core/backbone_router/bbr_manager.cpp

@@ -40,6 +40,7 @@
 #include "common/locator_getters.hpp"
 #include "common/log.hpp"
 #include "common/num_utils.hpp"
+#include "common/numeric_limits.hpp"
 #include "common/random.hpp"
 #include "instance/instance.hpp"
 #include "thread/mle_types.hpp"
@@ -202,7 +203,7 @@ void Manager::HandleMulticastListenerRegistration(const Coap::Message &aMessage,
     }
     else
     {
-        VerifyOrExit(timeout < UINT32_MAX, status = ThreadStatusTlv::kMlrNoPersistent);
+        VerifyOrExit(timeout < NumericLimits<uint32_t>::kMax, status = ThreadStatusTlv::kMlrNoPersistent);
 
         if (timeout != 0)
         {

src/core/radio/radio.hpp

@@ -37,11 +37,12 @@
 #include "openthread-core-config.h"
 
 #include <openthread/radio_stats.h>
+#include <openthread/platform/crypto.h>
 #include <openthread/platform/radio.h>
 
-#include <openthread/platform/crypto.h>
 #include "common/locator.hpp"
 #include "common/non_copyable.hpp"
+#include "common/numeric_limits.hpp"
 #include "common/time.hpp"
 #include "mac/mac_frame.hpp"
 
@@ -1082,9 +1083,9 @@ inline Error Radio::ResetCsl(void) { return kErrorNotImplemented; }
 #endif
 
 #if OPENTHREAD_CONFIG_MAC_CSL_RECEIVER_ENABLE || OPENTHREAD_CONFIG_MAC_CSL_TRANSMITTER_ENABLE
-inline uint8_t Radio::GetCslAccuracy(void) { return UINT8_MAX; }
+inline uint8_t Radio::GetCslAccuracy(void) { return NumericLimits<uint8_t>::kMax; }
 
-inline uint8_t Radio::GetCslUncertainty(void) { return UINT8_MAX; }
+inline uint8_t Radio::GetCslUncertainty(void) { return NumericLimits<uint8_t>::kMax; }
 #endif
 
 inline Mac::TxFrame &Radio::GetTransmitBuffer(void)

src/core/radio/radio_platform.cpp

@@ -261,14 +261,14 @@ OT_TOOL_WEAK uint8_t otPlatRadioGetCslAccuracy(otInstance *aInstance)
 {
     OT_UNUSED_VARIABLE(aInstance);
 
-    return UINT8_MAX;
+    return NumericLimits<uint8_t>::kMax;
 }
 
 OT_TOOL_WEAK uint8_t otPlatRadioGetCslUncertainty(otInstance *aInstance)
 {
     OT_UNUSED_VARIABLE(aInstance);
 
-    return UINT8_MAX;
+    return NumericLimits<uint8_t>::kMax;
 }
 
 OT_TOOL_WEAK otError otPlatRadioGetFemLnaGain(otInstance *aInstance, int8_t *aGain)

src/core/thread/link_quality.cpp

@@ -38,6 +38,7 @@
 #include "common/code_utils.hpp"
 #include "common/locator_getters.hpp"
 #include "common/num_utils.hpp"
+#include "common/numeric_limits.hpp"
 #include "instance/instance.hpp"
 
 namespace ot {
@@ -118,7 +119,7 @@ void LqiAverager::Add(uint8_t aLqi)
 {
     uint8_t count;
 
-    if (mCount < UINT8_MAX)
+    if (mCount < NumericLimits<uint8_t>::kMax)
     {
         mCount++;
     }