Make the EDis tables const.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150304 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/Disassembler/X86Disassembler.cpp b/lib/Target/X86/Disassembler/X86Disassembler.cpp
index e41ce4f..37ddf7f 100644
--- a/lib/Target/X86/Disassembler/X86Disassembler.cpp
+++ b/lib/Target/X86/Disassembler/X86Disassembler.cpp
@@ -82,7 +82,7 @@
   delete MII;
 }
 
-EDInstInfo *X86GenericDisassembler::getEDInfo() const {
+const EDInstInfo *X86GenericDisassembler::getEDInfo() const {
   return instInfoX86;
 }