mmc: rockchip_sdhci: Refactor execute tuning error handling

Check return value from mmc_send_cmd and clear HOST_CONTROL2 when there
is an error. Also skip enable of interrupt signaling and remove a delay,
a delay is already happening in sdhci_send_command.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
1 file changed