[RISCV] Recognize new relocation types

This patch adds all RISC-V relocation types, as of binutils 2.29. Note that 
R_RISCV32_PCREL is not currently documented in the RISC-V ELF PSABI.

Differential Revision: https://reviews.llvm.org/D36455

Patch by Chih-Mao Chen (@PkmX)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@310914 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed