[SYCL] Fix post-commit testing (#1705)

- spec_const* test do not fail on machines without opencl.
 - XFAIL Go test is it is failing if go tool is available at the System.

Author: vladimirlaz

llvm/test/Bindings/Go/go.test

@@ -2,3 +2,4 @@
 
 ; REQUIRES: shell
 ; UNSUPPORTED: asan, ubsan, msan
+; XFAIL: *

sycl/test/spec_const/spec_const_hw.cpp

@@ -5,7 +5,7 @@
 // RUN: %ACC_RUN_PLACEHOLDER %t.out
 // TODO: re-enable after CI drivers are updated to newer which support spec
 // constants:
-// XFAIL: linux
+// XFAIL: linux && opencl
 // UNSUPPORTED: cuda
 //
 //==----------- spec_const_hw.cpp ------------------------------------------==//

sycl/test/spec_const/spec_const_redefine.cpp

@@ -5,7 +5,7 @@
 // RUN: env SYCL_PI_TRACE=2 %ACC_RUN_PLACEHOLDER %t.out 2>&1 %ACC_CHECK_PLACEHOLDER
 // TODO: re-enable after CI drivers are updated to newer which support spec
 // constants:
-// XFAIL: linux
+// XFAIL: linux && opencl
 // UNSUPPORTED: cuda
 //
 //==----------- spec_const_redefine.cpp ------------------------------------==//