soc/tegra: pmc: Add comments clarifying wake events

Add some comments to clarify the purpose of the wake event support
implemented in the PMC driver.

Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Thierry Reding 2019-06-04 17:41:15 +02:00
commit 34abf69732