Revert workaround for Neoverse N1 erratum 1800710

This reverts commit 11af40b6308ac75c83e874129bb79bc3a58060bf, reversing
changes made to 2afcf1d4b845272791b75c8285108c4dcd91e2b9.

This errata workaround did not work as intended so we are reverting this
change.  In the future, when the corrected workaround is published in an
SDEN, we will push a new workaround.

This is the patch being reverted:
https://review.trustedfirmware.org/c/TF-A/trusted-firmware-a/+/4750

Signed-off-by: John Powell <john.powell@arm.com>
Change-Id: I20aa064c1bac9671939e657bec269d32b9e75a97
4 files changed