pull-tcg-20230106

Richard Henderson

@rth7680

90497e03 · tcg/s390x: Avoid the constant pool in tcg_out_movi · Jan 06, 2023

tcg/s390x improvements:
 - drop support for pre-z196 cpus (eol before 2017)
 - add support for misc-instruction-extensions-3
 - misc cleanups