arm: use type jmp_buf instead of struct jmp_buf_data

Instead of using the implementation specific struct jmp_buf_data use the
standard compliant type jmp_buf when switching exception levels.

Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2 files changed