[utils] Fix RISC-V support in update_llc_test_checks.py

scrub_asm_riscv now takes two arguments rather than one.

llvm-svn: 317826
diff --git a/llvm/utils/update_llc_test_checks.py b/llvm/utils/update_llc_test_checks.py
index c3320f2..9b2df90 100755
--- a/llvm/utils/update_llc_test_checks.py
+++ b/llvm/utils/update_llc_test_checks.py
@@ -141,7 +141,7 @@
   asm = SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
   return asm
 
-def scrub_asm_riscv(asm):
+def scrub_asm_riscv(asm, args):
   # Scrub runs of whitespace out of the assembly, but leave the leading
   # whitespace in place.
   asm = SCRUB_WHITESPACE_RE.sub(r' ', asm)