BeaconRxCount attributes results is NULL instead of 0 in linux platform (project-chip#32805)

* BeaconRxCount attributes results is NULL instead of 0

* Restyled by clang-format

* Removed GetWiFiBeaconRxCount from connectivityutills

---------

Co-authored-by: Restyled.io <commits@restyled.io>

Author: 2 people

src/platform/Linux/DiagnosticDataProviderImpl.cpp

@@ -759,6 +759,13 @@ CHIP_ERROR DiagnosticDataProviderImpl::GetWiFiOverrunCount(uint64_t & overrunCou
     return CHIP_NO_ERROR;
 }
 
+CHIP_ERROR DiagnosticDataProviderImpl::GetWiFiBeaconRxCount(uint32_t & beaconRxCount)
+{
+    beaconRxCount = mBeaconRxCount;
+
+    return CHIP_NO_ERROR;
+}
+
 CHIP_ERROR DiagnosticDataProviderImpl::ResetWiFiNetworkDiagnosticsCounts()
 {
     CHIP_ERROR err          = CHIP_ERROR_READ_FAILED;

src/platform/Linux/DiagnosticDataProviderImpl.h

@@ -73,6 +73,7 @@ class DiagnosticDataProviderImpl : public DiagnosticDataProvider
     CHIP_ERROR GetWiFiChannelNumber(uint16_t & channelNumber) override;
     CHIP_ERROR GetWiFiRssi(int8_t & rssi) override;
     CHIP_ERROR GetWiFiBeaconLostCount(uint32_t & beaconLostCount) override;
+    CHIP_ERROR GetWiFiBeaconRxCount(uint32_t & beaconRxCount) override;
     CHIP_ERROR GetWiFiPacketMulticastRxCount(uint32_t & packetMulticastRxCount) override;
     CHIP_ERROR GetWiFiPacketMulticastTxCount(uint32_t & packetMulticastTxCount) override;
     CHIP_ERROR GetWiFiPacketUnicastRxCount(uint32_t & packetUnicastRxCount) override;
@@ -97,6 +98,7 @@ class DiagnosticDataProviderImpl : public DiagnosticDataProvider
 
 #if CHIP_DEVICE_CONFIG_ENABLE_WIFI
     uint32_t mBeaconLostCount        = 0;
+    uint32_t mBeaconRxCount          = 0;
     uint32_t mPacketMulticastRxCount = 0;
     uint32_t mPacketMulticastTxCount = 0;
     uint32_t mPacketUnicastRxCount   = 0;