[SYCL][NFC] Specify target for XFAIL command (#8282)

Making the XFAIL run command line target specific.

Author: zahiraam

clang/test/CodeGenSYCL/debug-info-file-checksum.cpp

@@ -35,5 +35,4 @@
 // TODO: Fails on windows because of the use of append-file command that returns
 // path with "\\" on windows. getPresumedLoc is failing with Literal String
 // parser returning erroneous filename.
-// XFAIL: windows-msvc
-
+// XFAIL: target=x86_64-pc-windows-msvc