RISC-V: move struct vector_type_info from *.h to *.cc and change "user_name" into "name".
gcc/ChangeLog:
* config/riscv/riscv-vector-builtins.cc (struct vector_type_info): Move
from config/riscv/riscv-vector-builtins.h.
(DEF_RVV_TYPE): Change USER_NAME to NAME.
(register_vector_type): Change user_name to name.
* config/riscv/riscv-vector-builtins.def (DEF_RVV_TYPE): Change
USER_NAME to NAME.
* config/riscv/riscv-vector-builtins.h (struct vector_type_info): Move
to riscv-vector-builtins.cc.
(DEF_RVV_TYPE): Change USER_NAME to NAME.
Reviewed-by: Kito Cheng <kito.cheng@sifive.com>