Since booting Linux requires that we are running
at EL1 or EL2, transition already from EL3 to EL2.
It is assumed for now that the system implements
all exception levels, which is not a requirement.
BUG=None
BRANCH=none
TEST=Boot to ramstage worked as before and used current_el()
to verify that we are indeed at EL2
Change-Id: I29d8fc830367158cba53703d1dc2f0ad398b9d49
Signed-off-by: Marcelo Povoa <marcelogp@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/186741
Reviewed-by: David Hendricks <dhendrix@chromium.org>