Pull request project-chip#750: Fix Credentials lighting-app

Merge in WMN_TOOLS/matter from fix_credentials_lighting-app to RC_2.0.0-1.1

Squashed commit of the following:

commit 27c2bd478401f24bfa6af00137af143c02c6ad53
Author: jepenven-silabs <jean-francois.penven@silabs.com>
Date:   Fri May 5 09:24:11 2023 -0400

    Fix Credentials lighting-app

examples/lighting-app/silabs/efr32/src/main.cpp

@@ -64,7 +64,7 @@ int main(void)
     chip::DeviceLayer::PlatformMgr().LockChipStack();
     // Initialize device attestation config
 #ifdef SILABS_ATTESTATION_CREDENTIALS
-    SetDeviceAttestationCredentialsProvider(Silabs::GetSilabsDacProvider());
+    SetDeviceAttestationCredentialsProvider(Credentials::Silabs::GetSilabsDacProvider());
 #else
     SetDeviceAttestationCredentialsProvider(Examples::GetExampleDACProvider());
 #endif