arm: Rework usage of CONFIG_ARMV[78]_SECURE_BASE in linker scripts

In order to avoid defining CONFIG_ARMV[78_]SECURE_BASE as empty in the
linker scripts, if not already defined, add and use
__ARMV[78_]SECURE_BASE for when the base is not defined and we want the
linker scripts to continue.

Signed-off-by: Tom Rini <trini@konsulko.com>
2 files changed