mmc: sdhci-omap: Use pm_runtime_resume_and_get() to replace open coding

use pm_runtime_resume_and_get() to replace pm_runtime_get_sync and
pm_runtime_put_noidle. this change is just to simplify the code, no
actual functional changes.

Signed-off-by: Tian Tao <tiantao6@hisilicon.com>
Link: https://lore.kernel.org/r/1621558965-34077-1-git-send-email-tiantao6@hisilicon.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>