target/arm: Fix ATS12NSO* from S PL1

target/arm: Fix ATS12NSO* from S PL1

Use arm_hcr_el2_eff_secstate instead of arm_hcr_el2_eff, so
that we use is_secure instead of the current security state.
These AT* operations have been broken since arm_hcr_el2_eff
gained a check for "el2 enabled" for Secure EL2.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20221001162318.153420-18-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>