staging: iio: light: iqs253: set wq freezable

staging: iio: light: iqs253: set wq freezable

Bug 1458603

Change-Id: I5f3c5cad4408b894d3c2fcbcedf02a0efd88a1c1
Signed-off-by: Sri Krishna chowdary <schowdary@nvidia.com>
Reviewed-on: http://git-master/r/368523
(cherry picked from commit 54342d0f8c1cd7d2d6c0acef08d48bf1391e0ffe)
Reviewed-on: http://git-master/r/369750
(cherry picked from commit 54cc8c734df49f7df32aa1cbf85c889a722491ec)
Reviewed-on: http://git-master/r/374284
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Sachin Nikam <snikam@nvidia.com>