tegra132: always bring up PLLD

The kernel does not correctly function without PLLD being enabled.
Additionally, PLLD can be the source for other clocks in the system.
Therefore, initialize PLLD to 300MHz unconditionally at BS_DEV_INIT
time in ramstage.

BUG=chrome-os-partner:33825
BRANCH=None
TEST=Built and booted ryu with display coming up both in dev mode as
     well as normal mode.

Change-Id: Ic5905e25051a042cea5010b8c6d61b1fb89a0a81
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/230762
1 file changed