i2s_test: fix unsupported sample rate on h2

examples/peripherals/i2s/i2s_codec/i2s_es7210_tdm/pytest_i2s_es7210_tdm.py

@@ -7,7 +7,7 @@ from pytest_embedded import Dut
 @pytest.mark.esp32s3
 @pytest.mark.esp32c3
 @pytest.mark.esp32c6
-# @pytest.mark.esp32h2   IDF-6264
+@pytest.mark.esp32h2
 @pytest.mark.generic
 def test_i2s_es7210_tdm_example(dut: Dut) -> None:
     dut.expect_exact('example: Create I2S receive channel')