[SYCL] fix preprocessor comparison

Author: dklochkov-emb

sycl/include/sycl/aliases.hpp

@@ -141,7 +141,7 @@ using cl_double = double;
 } // namespace opencl
 
 // Vector aliases are different between SYCL 1.2.1 and SYCL 2020
-#if SYCL_LANGUAGE_VERSION >= 202012L
+#if SYCL_LANGUAGE_VERSION == 202012L
 __SYCL_2020_MAKE_VECTOR_ALIASES_FOR_VECTOR_LENGTH(2)
 __SYCL_2020_MAKE_VECTOR_ALIASES_FOR_VECTOR_LENGTH(3)
 __SYCL_2020_MAKE_VECTOR_ALIASES_FOR_VECTOR_LENGTH(4)

sycl/include/sycl/detail/defines_elementary.hpp

@@ -57,7 +57,7 @@
 #endif // __SYCL_DEPRECATED
 
 #ifndef __SYCL2020_DEPRECATED
-#if SYCL_LANGUAGE_VERSION >= 202012L &&                                        \
+#if SYCL_LANGUAGE_VERSION == 202012L &&                                        \
     !defined(SYCL2020_DISABLE_DEPRECATION_WARNINGS)
 #define __SYCL2020_DEPRECATED(message) __SYCL_DEPRECATED(message)
 #else