ARM: tegra210: hawkeye: add support for display uC

ARM: tegra210: hawkeye: add support for display uC

Add support for the Cypress microcontroller used to
control display power sequences on Hawkeye A04.

Bug 1679724

Change-Id: I1437420bec07b755690d5aaa4deb20751372e975
Signed-off-by: Daniel Solomon <daniels@nvidia.com>
Reviewed-on: http://git-master/r/804157
(cherry picked from commit 5e92670cbab1e7824b4b3eac305ca23be3e45904)
Reviewed-on: http://git-master/r/818546
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Mitch Luban <mluban@nvidia.com>
Reviewed-by: Aly Hirani <ahirani@nvidia.com>