build: Update CMakeLists.txt.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145341 91177308-0d34-0410-b5e6-96231b3b80d8

lib/MC/MCDisassembler/CMakeLists.txt

@@ -2,6 +2,7 @@ add_llvm_library(LLVMMCDisassembler
   Disassembler.cpp
   EDDisassembler.cpp
   EDInst.cpp
+  EDMain.cpp
   EDOperand.cpp
   EDToken.cpp
   )