[AVR] Add the 'SoftFail' field to all instruction formats

This will be used in the future for disassembly.

llvm-svn: 283630
diff --git a/llvm/lib/Target/AVR/AVRInstrFormats.td b/llvm/lib/Target/AVR/AVRInstrFormats.td
index c10023d..ce5e606 100644
--- a/llvm/lib/Target/AVR/AVRInstrFormats.td
+++ b/llvm/lib/Target/AVR/AVRInstrFormats.td
@@ -20,6 +20,8 @@
   dag InOperandList = ins;
   let AsmString = asmstr;
   let Pattern = pattern;
+
+  field bits<32> SoftFail = 0;
 }
 
 /// A 16-bit AVR instruction.