[UpdateTestChecks] Skip over .Lfunc_begin for RISC-V
[UpdateTestChecks] Skip over .Lfunc_begin for RISC-V

This mirrors the change made for X86 in rL336987. Without this patch,
update_llc_test_checks will completely skip functions with personality
functions.



git-svn-id: 0ff597fd157e6f4fc38580e8d64ab130330d2411@365297 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-mirror/llvm,GPUOpen-Drivers/llvm,GPUOpen-Drivers/llvm,llvm-mirror/llvm,llvm-mirror/llvm,llvm-mirror/llvm,GPUOpen-Drivers/llvm,llvm-mirror/llvm,llvm-mirror/llvm,llvm-mirror/llvm,llvm-mirror/llvm,llvm-mirror/llvm,GPUOpen-Drivers/llvm,GPUOpen-Drivers/llvm,GPUOpen-Drivers/llvm,GPUOpen-Drivers/llvm,GPUOpen-Drivers/llvm