This initializes the APLL at 1800MHz.
BUG=none
BRANCH=none
TEST=built and booted on Pit
Change-Id: I366bf4e75510847ab93d9c9f214a49c731cca08a
Reviewed-on: https://gerrit.chromium.org/gerrit/64745
Reviewed-by: Gabe Black <gabeblack@chromium.org>
Commit-Queue: David Hendricks <dhendrix@chromium.org>
Tested-by: David Hendricks <dhendrix@chromium.org>