[SL-ONLY] Rename ZclCallbacks to DataModelCallbacks for silabs specif… (#643)

Author: mkardous-silabs

examples/template/silabs/BUILD.gn

@@ -123,7 +123,7 @@ silabs_executable("template_app") {
   sources = [
     "${examples_common_plat_dir}/main.cpp",
     "src/AppTask.cpp",
-    "src/ZclCallbacks.cpp",
+    "src/DataModelCallbacks.cpp",
   ]
 
   deps = [

examples/template/silabs/HOW_TO_CREATE_A_CUSTOM_APP.md

@@ -218,6 +218,6 @@ Lighting-app's [README](../../../examples/lighting-app/efr32/README.md).
 [4]: ../../../third_party/zap/repo/README.md
 [5]: ../../../
 [6]: #Modifying-the-GN-Build-files
-[7]: src/ZclCallbacks.cpp
+[7]: src/DataModelCallbacks.cpp
 [8]: ../../sl-newLight/efr32/src/
 [9]: ../../sl-newLight/efr32/README.md

examples/template/silabs/README.md

@@ -36,8 +36,8 @@ sends them to the corresponding _handler_.
 ### Receiving Matter commands
 
 All Matter commands reach the application through the intermediate of the
-function [MatterPostAttributeChangeCallback()](src/ZclCallbacks.cpp). Modify
-this function to forward the commands it receives to a _function_ of your
+function [MatterPostAttributeChangeCallback()](src/DataModelCallbacks.cpp).
+Modify this function to forward the commands it receives to a _function_ of your
 choosing. This _function_ should implement the behavior you desire in response
 to these commands.