GNU assembler starting 2.40 release always generates R_RISCV_CALL_PLT reloc for call in assembler [1], similarly LLVM does not make distinction between R_RISCV_CALL_PLT and R_RISCV_CALL [2]. Fixes "grub-mkimage: error: relocation 0x13 is not implemented yet.". [1] https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=70f35d72ef04cd23771875c1661c9975044a749c [2] https://reviews.llvm.org/D132530 Signed-off-by: Khem Raj <raj.khem@gmail.com> Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>