clock: tegra21: Add SCLK shared user for WIFI

clock: tegra21: Add SCLK shared user for WIFI

Bug 1653975

Change-Id: I7eb2f6b4509bfd2efaeaa47eb5ae38ac66394faf
Signed-off-by: Alex Frid <afrid@nvidia.com>
(cherry picked from commit f8ba29eacd89d49bd1049c62eccbf68c1ec659a8)
Reviewed-on: http://git-master/r/767988
(cherry picked from commit 14b862da14fc895ce4edaf41776288d2f797c99a)
Reviewed-on: http://git-master/r/811791
Reviewed-by: Michael Hsu <mhsu@nvidia.com>
Tested-by: Michael Hsu <mhsu@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Ashutosh Jha <ajha@nvidia.com>