[asan] Fix interception unittest on Windows64.

mov edi,edi is _not_ NOP in 64-bit, use 66,90h instead.
This bug was causing interception unittest to crash on 
Windows64 (windows 8 and windows 10).

Credits to etienneb for finding the root cause.

Patch by: Wei Wang
Differential Revision: http://reviews.llvm.org/D22274

llvm-svn: 275207
diff --git a/compiler-rt/lib/interception/interception_win.cc b/compiler-rt/lib/interception/interception_win.cc
index 994961a..1db8ac4 100644
--- a/compiler-rt/lib/interception/interception_win.cc
+++ b/compiler-rt/lib/interception/interception_win.cc
@@ -461,6 +461,7 @@
     case 0x5541:  // push r13
     case 0x5641:  // push r14
     case 0x5741:  // push r15
+    case 0x9066:  // Two-byte NOP
       return 2;
   }