[Hexagon] Adding missing break in switch statement.  Extra operands would have been appended to the end.

llvm-svn: 263657
diff --git a/llvm/lib/Target/Hexagon/Disassembler/HexagonDisassembler.cpp b/llvm/lib/Target/Hexagon/Disassembler/HexagonDisassembler.cpp
index 350e312..90fc2c6 100644
--- a/llvm/lib/Target/Hexagon/Disassembler/HexagonDisassembler.cpp
+++ b/llvm/lib/Target/Hexagon/Disassembler/HexagonDisassembler.cpp
@@ -1460,6 +1460,7 @@
     operand = getRegFromSubinstEncoding((inst & 0xf0) >> 4);
     Op = MCOperand::createReg(operand);
     MI->addOperand(Op);
+    break;
   case Hexagon::V4_SA1_and1:
   case Hexagon::V4_SA1_dec:
   case Hexagon::V4_SA1_inc: