[AVR] Redefine the 'SBR' instruction as an alias

This fixes a TableGen warning about duplicate bit patterns.

SBR
===

This is an alias of 'ORI Rd, K'.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@341277 91177308-0d34-0410-b5e6-96231b3b80d8
2 files changed