target/arm: fix LORID_EL1 access check

Secure mode is not exempted from checking SCR_EL3.TLOR, and in the
future HCR_EL2.TLOR when S-EL2 is enabled.

Signed-off-by: Rémi Denis-Courmont <remi.denis.courmont@huawei.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>