i2c_app_test: Add i2c work together with wifi test

tools/test_apps/peripherals/i2c_wifi/app_test.py

@@ -0,0 +1,18 @@
+#!/usr/bin/env python
+import tiny_test_fw
+import ttfw_idf
+
+
+@ttfw_idf.idf_custom_test(env_tag='Example_GENERIC')
+def test_startup(env, _):  # type: (tiny_test_fw.Env.Env, None) -> None
+    # Only test for master usage.
+    dut = env.get_dut('i2c_wifi', 'tools/test_apps/peripherals/i2c_wifi')
+    dut.start_app()
+
+    dut.expect('I2C-WIFI test success')
+
+    env.close_dut(dut.name)
+
+
+if __name__ == '__main__':
+    test_startup()