mmc: renesas-sdhi: Send stop when MMC tuning command fails

When tuning command (CMD21) fails with command error, call
mmc_send_stop_transmission() to send stop command (CMD12).

Reviewed-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
Reviewed-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Signed-off-by: Hai Pham <hai.pham.ud@renesas.com>
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
[Marek: Add dev_dbg() message in case tuning abort fails
        Move tuning opcode check from mmc_abort_tuning()]
Reviewed-by: Peng Fan <peng.fan@nxp.com>