[Bug target/123916] [RISC-V] Failed to vectorize due to forget to pick value from --param=gpr2vr-cost

[pan2.li at intel dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123916

--- Comment #1 from Li Pan <pan2.li at intel dot com> ---
Fixed by adding new param=vr2gpr-cost/param=vr2fpr-cost, and provide the
reasonable values for related vx/vf test.