Support ele backed operational keystore

Support the ELE (EdgeLock Enclave) backed persistent storage
operation keystore.

It's availble for i.MX 93 only.

Change-Id: Id9e624040c57f80d9cc84511cf9a28c01084a60d
Signed-off-by: Ji Luo <ji.luo@nxp.com>
Reviewed-on: http://androidsource.nxp.com/project/22450
Reviewed-by: Elven Wang <elven.wang@nxp.com>
Reviewed-on: http://androidsource.nxp.com/project/23010

Author: luoji-nxp

.gitmodules

@@ -357,3 +357,7 @@
 [submodule "third_party/libtrustymatter/repo"]
 	path = third_party/libtrustymatter/repo
 	url = https://github.com/nxp-imx/libtrustymatter
+[submodule "repo"]
+	path = third_party/imx-secure-enclave/repo
+	url = https://github.com/nxp-imx/imx-secure-enclave.git
+	branch = lf-6.12.3_1.0.0

examples/platform/linux/AppMain.cpp

@@ -136,6 +136,11 @@ using namespace chip::Credentials::Trusty;
 using namespace chip::Trusty;
 #endif
 
+#if CHIP_OP_KEYSTORE_ELE
+#include "PersistentStorageOperationalKeystoreEle.h"
+using namespace chip::ele;
+#endif
+
 using namespace chip;
 using namespace chip::ArgParser;
 using namespace chip::Credentials;
@@ -586,6 +591,11 @@ void ChipLinuxAppMainLoop(AppMainLoopImplementation * impl)
     initParams.operationalKeystore = &sPersistentStorageOperationalKeystore;
 #endif
 
+#if CHIP_OP_KEYSTORE_ELE
+    static chip::ele::PersistentStorageOperationalKeystoreEle sPersistentStorageOperationalKeystore;
+    initParams.operationalKeystore = &sPersistentStorageOperationalKeystore;
+#endif
+
 #if defined(ENABLE_CHIP_SHELL)
     Engine::Root().Init();
     Shell::RegisterCommissioneeCommands();

examples/platform/linux/BUILD.gn

@@ -17,6 +17,7 @@ import("${chip_root}/examples/common/pigweed/pigweed_rpcs.gni")
 import("${chip_root}/src/app/common_flags.gni")
 import("${chip_root}/src/app/icd/icd.gni")
 import("${chip_root}/src/lib/core/core.gni")
+import("${chip_root}/src/lib/imx_ele.gni")
 import("${chip_root}/src/lib/lib.gni")
 import("${chip_root}/src/lib/trusty.gni")
 import("${chip_root}/src/tracing/tracing_args.gni")
@@ -106,6 +107,13 @@ source_set("app-main") {
     ]
   }
 
+  if (chip_with_imx_ele == 1) {
+    sources += [
+      "PersistentStorageOperationalKeystoreEle.cpp",
+      "PersistentStorageOperationalKeystoreEle.h",
+    ]
+  }
+
   public_deps = [
     ":boolean-state-configuration-test-event-trigger",
     ":commissioner-main",
@@ -136,6 +144,11 @@ source_set("app-main") {
     public_deps += [ "${chip_root}/third_party/libtrustymatter" ]
   }
 
+  if (chip_with_imx_ele == 1) {
+    public_deps +=
+        [ "${chip_root}/third_party/imx-secure-enclave:libelematter" ]
+  }
+
   if (chip_with_trusty_os == 1) {
     defines += [ "CHIP_ATTESTATION_TRUSTY_OS=1" ]
   } else {
@@ -148,6 +161,12 @@ source_set("app-main") {
     defines += [ "CHIP_OP_KEYSTORE_TRUSTY_OS=0" ]
   }
 
+  if (chip_with_imx_ele == 1) {
+    defines += [ "CHIP_OP_KEYSTORE_ELE=1" ]
+  } else {
+    defines += [ "CHIP_OP_KEYSTORE_ELE=0" ]
+  }
+
   if (chip_enable_pw_rpc) {
     defines += [ "PW_RPC_ENABLED" ]
   }