[Silabs] [SiWx917] Added the platform chip_crypto to SiWx917 platform (…

…#25019)

* Added the platform chip_crypto to SiWx917 platform

* Restyled by gn

* removed chipcryptopal.h and modified Aes128KeyHandle which was missed

* Restyled by clang-format

* Restyled by gn

* result was added twice, removed one

---------

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

src/platform/silabs/SiWx917/BUILD.gn

@@ -27,6 +27,9 @@ if (chip_enable_openthread) {
   import("//build_overrides/openthread.gni")
 }
 
+if (chip_crypto == "platform") {
+  import("//build_overrides/mbedtls.gni")
+}
 static_library("SiWx917") {
   sources = [
     "${silabs_platform_dir}/BLEManagerImpl.h",
@@ -67,6 +70,15 @@ static_library("SiWx917") {
 
   public_deps = [ "${chip_root}/src/platform:platform_base" ]
 
+  # Add platform crypto implementation
+  if (chip_crypto == "platform") {
+    sources += [ "CHIPCryptoPALTinyCrypt.cpp" ]
+    public_deps += [
+      "${chip_root}/src/crypto",
+      "${mbedtls_root}:mbedtls",
+    ]
+  }
+
   if (chip_enable_wifi) {
     sources += [
       "${silabs_platform_dir}/ConnectivityManagerImpl_WIFI.cpp",