pinctrl: tegra: fix pinconfig_group_set

pinctrl: tegra: fix pinconfig_group_set

Prepare config using param parameter to generate the right
value for pinmux register

Bug 200033491

Change-Id: I973cc449e8cf89cb3b6f5b5da1021d21d193b47d
Signed-off-by: Bibek Basu <bbasu@nvidia.com>
Reviewed-on: http://git-master/r/496827
(cherry picked from commit 418c027e40353a4b99fe7fcfbc0743de7e07d15c)
Reviewed-on: http://git-master/r/498329
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Venkat Moganty <vmoganty@nvidia.com>
Reviewed-by: Matthew Pedro <mapedro@nvidia.com>