[E2E][SYCL] Actually disable fast math in marray_common.cpp test (#16205)

#15223 updated the normal build
command but not the `preview-breaking-changes` one. Fix that here.

Author: aelovikov-intel

sycl/test-e2e/Basic/built-ins/marray_common.cpp

@@ -2,7 +2,7 @@
 
 // RUN: %{build} %{mathflags} -o %t.out
 // RUN: %{run} %t.out
-// RUN: %if preview-breaking-changes-supported %{ %{build} -fpreview-breaking-changes -o %t_preview.out %}
+// RUN: %if preview-breaking-changes-supported %{ %{build} %{mathflags} -fpreview-breaking-changes -o %t_preview.out %}
 // RUN: %if preview-breaking-changes-supported %{ %{run} %t_preview.out%}
 
 #ifdef _WIN32