aarch64: mmu: Enable support for unprivileged EL0

The current MMU code is assuming that both kernel and threads are both
running in EL1, not supporting EL0. Extend the support to EL0 by adding
the missing attribute to mirror the access / execute permissions to EL0.

Signed-off-by: Carlo Caione <ccaione@baylibre.com>
4 files changed