Update CMake files.

llvm-svn: 81577
diff --git a/llvm/lib/MC/CMakeLists.txt b/llvm/lib/MC/CMakeLists.txt
index 4fc9993..277fb26 100644
--- a/llvm/lib/MC/CMakeLists.txt
+++ b/llvm/lib/MC/CMakeLists.txt
@@ -8,6 +8,7 @@
   MCAssembler.cpp
   MCCodeEmitter.cpp
   MCContext.cpp
+  MCDisassembler.cpp
   MCExpr.cpp
   MCInst.cpp
   MCMachOStreamer.cpp