Add VBN/QA regression tests and FRIEND_TEST declarations for isSecureDbgSrvUnlocked

[Copilot]

Non-PROD build types (VBN, QA) had no unit test coverage for isSecureDbgSrvUnlocked(), leaving the door open for silent behavior regressions. Additionally, all isSecureDbgSrvUnlocked_* tests were missing FRIEND_TEST declarations, preventing proper access to the private method under test.

Changes

• rfcMgr/gtest/gtest_main.cpp: Added two regression tests for non-PROD build types:

  • isSecureDbgSrvUnlocked_vbn — VBN build → false
  • isSecureDbgSrvUnlocked_qa — QA build → false

• rfcMgr/rfc_xconf_handler.h: Added FRIEND_TEST declarations for all seven isSecureDbgSrvUnlocked_* test variants (dev, labsigned_true, prod, dType_prod, labsigned_DbgSrv_false, vbn, qa) to grant test access to the private method.

// New tests follow the same pattern as existing PROD variants
TEST(rfcMgrTest, isSecureDbgSrvUnlocked_vbn) {
    writeToTr181storeFile("BUILD_TYPE", "vbn", "/tmp/device.properties", Plain);
    RuntimeFeatureControlProcessor *rfcObj = new RuntimeFeatureControlProcessor();
    EXPECT_EQ(rfcObj->isSecureDbgSrvUnlocked(), false);
    delete rfcObj;
}

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