mmc: sdhci: allow clock enable in suspend sequence

mmc: sdhci: allow clock enable in suspend sequence

Some host with SDHCI_QUIRK2_NON_STD_RTPM deviation
need to enable clock in the suspend sequence.
This change enables such platforms to
suspend properly.

bug 200155814

Change-Id: I37969748660965c4b4097837e9b9c6bb7a593b4e
Signed-off-by: Bitan Biswas <bbiswas@nvidia.com>
Reviewed-on: http://git-master/r/1012839
(cherry picked from commit e27946db4cc054ab016459e3e16f3e68a51f0872)
Reviewed-on: http://git-master/r/1177603
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>