[Bug target/70322] STV doesn't optimize andn

[hjl.tools at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70322

--- Comment #2 from H.J. Lu <hjl.tools at gmail dot com> ---
TARGET_BMI isn't needed in *andndi3_doubleword since combine won't
generate BMI andn patterns unless BMI is enabled.