clover: Initialize Asm Parsers

Fixes piglits that use ADMGCN inline assembly:
	program@execute@calls
	program@execute@amdgcn-mubuf-negative-vaddr

CC: <mesa-stable@lists.freedesktop.org>
Signed-off-by: Jan Vesely <jan.vesely@rutgers.edu>

src/gallium/state_trackers/clover/llvm/invocation.cpp

@@ -104,6 +104,7 @@ namespace {
          LLVMInitializeAllTargets();
          LLVMInitializeAllTargetInfos();
          LLVMInitializeAllTargetMCs();
+         LLVMInitializeAllAsmParsers();
          LLVMInitializeAllAsmPrinters();
          targets_initialized = true;
       }