[Bug target/65117] xtensa: With -Os, invalid parameter c1 for reg_class_subset_p() to cause segment fault.

[gang.chen.5i5j at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65117

--- Comment #2 from Chen Gang <gang.chen.5i5j at gmail dot com> ---
Oh, sorry, one typo issue: 'this_alternative_match_win' is incorrect, it should
be 'this_alternative_win'.