[PATCH] RISC-V: Treat R_RISCV_CALL and R_RISCV_CALL_PLT as the same in check_relocs.

[Nelson Chu]

Hi binutils,

I have committed this change to let rv32 glibc PLT works well,
https://sourceware.org/pipermail/libc-alpha/2020-August/117283.html

If there are any other problems or issues, please feel free to let me know.

Thanks!
Nelson