mmc: sdhci: tegra: fix wrong unit with busy_timeout

mmc: sdhci: tegra: fix wrong unit with busy_timeout

'busy_timeout' is in msecs, not in jiffies. Use the correct factor.

Fixes: 5e958e4aacf4 ("sdhci: tegra: Implement Tegra specific set_timeout callback")
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Sowjanya Komatineni <skomatineni@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/20201116132206.23518-1-wsa+renesas@sang-engineering.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>