target/s390x: Inline cpu_ld{uw, l}_code() calls in EX opcode helper

target/s390x: Inline cpu_ld{uw, l}_code() calls in EX opcode helper

In preparation of removing the cpu_lduw_code() and cpu_ldl_code()
wrappers, inline them.

Since S390x instructions are always stored in big-endian order,
replace MO_TE -> MO_BE.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Reviewed-by: Eric Farman <farman@linux.ibm.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20251224162036.90404-6-philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>