target/arm: Pass HCR to attribute subroutines.

target/arm: Pass HCR to attribute subroutines.

These subroutines did not need ENV for anything except
retrieving the effective value of HCR anyway.

We have computed the effective value of HCR in the callers,
and this will be especially important for interpreting HCR
in a non-current security state.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20221001162318.153420-17-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>