mmc: tegra: use pr_info instead of pr_err

mmc: tegra: use pr_info instead of pr_err

-use pr_info instead of pr_err
-best tap value is an information and not an err
hence changing to pr_info

Bug 1492481

Change-Id: I34d8634ae1e358d3c227a1101f8ae9f7f87627a0
Signed-off-by: Naveen Kumar Arepalli <naveenk@nvidia.com>
Reviewed-on: http://git-master/r/395639
(cherry picked from commit 73687a8eb4734170f7451f08dcf865bd5b494a8a)
Reviewed-on: http://git-master/r/414967
Reviewed-by: Shreshtha Sahu <ssahu@nvidia.com>
Tested-by: Shreshtha Sahu <ssahu@nvidia.com>
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Matthew Pedro <mapedro@nvidia.com>