RVVM2x2QI should be rvvm2qi instead of rvvmq1i.
gcc/ChangeLog:
* config/riscv/vector-iterators.md: Fix vsingle incorrect attribute for RVVM2x2QI.
(RVVM1x5QI "rvvm1qi") (RVVMF2x5QI "rvvmf2qi") (RVVMF4x5QI "rvvmf4qi") (RVVMF8x5QI "rvvmf8qi")
(RVVM2x4QI "rvvm2qi") (RVVM1x4QI "rvvm1qi") (RVVMF2x4QI "rvvmf2qi") (RVVMF4x4QI "rvvmf4qi") (RVVMF8x4QI "rvvmf8qi")
(RVVM2x3QI "rvvm2qi") (RVVM1x3QI "rvvm1qi") (RVVMF2x3QI "rvvmf2qi") (RVVMF4x3QI "rvvmf4qi") (RVVMF8x3QI "rvvmf8qi")
- (RVVM4x2QI "rvvm4qi") (RVVM2x2QI "rvvm1qi") (RVVM1x2QI "rvvm1qi") (RVVMF2x2QI "rvvmf2qi") (RVVMF4x2QI "rvvmf4qi") (RVVMF8x2QI "rvvmf8qi")
+ (RVVM4x2QI "rvvm4qi") (RVVM2x2QI "rvvm2qi") (RVVM1x2QI "rvvm1qi") (RVVMF2x2QI "rvvmf2qi") (RVVMF4x2QI "rvvmf4qi") (RVVMF8x2QI "rvvmf8qi")
(RVVM1x8HI "rvvm1hi") (RVVMF2x8HI "rvvmf2hi") (RVVMF4x8HI "rvvmf4hi")
(RVVM1x7HI "rvvm1hi") (RVVMF2x7HI "rvvmf2hi") (RVVMF4x7HI "rvvmf4hi")