tests/qtest/npcm7xx_sdhci: Access the card using its published address

tests/qtest/npcm7xx_sdhci: Access the card using its published address

Currently setup_sd_card() asks the card its address,
but discard the response and use hardcoded 0x4567.

Set the SDHC_CMD_RESPONSE bit to have the controller
record the bus response, and read the response from
the RSPREG0 register. Then we can select the card with
its real address.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Message-Id: <20240702140842.54242-4-philmd@linaro.org>