The driver cannot be built as a module, so having a MODULE_ALIAS() isn't
useful.

While at it, fix a small typo in the file header comment and make the
module description string consistent with those for earlier Tegra SoCs.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>