mmc: tegra: Verify return status of clock APIs

mmc: tegra: Verify return status of clock APIs

Added debug prints for verifying the return status of
clock APIs that are used in the sdhci driver.

Bug 1424839

Signed-off-by: R Raj Kumar <rrajk@nvidia.com>
Reviewed-on: http://git-master/r/353275
(cherry picked from commit 41f0aeb44644e331dc0414c564b9cbc739afece4)
Change-Id: Ifd5999314a2809d8995f9640bc730f1797ed8dee
Signed-off-by: Pavan Kunapuli <pkunapuli@nvidia.com>
Reviewed-on: http://git-master/r/739247
Reviewed-by: Automatic_Commit_Validation_User