Fix version check for using -mavxvnni (microsoft#21616)

### Description
<!-- Describe your changes. -->
Change the `CMAKE_CXX_COMPILER_VERSION` greater than `11` for using
'-mavxvnni'.


### Motivation and Context
<!-- - Why is this change required? What problem does it solve?
- If it fixes an open issue, please link to the issue here. -->


`CMakeFiles/onnxruntime_mlas.dir/root/Git.d/onnxruntime/onnxruntime/core/mlas/lib/x86_64/QgemmU8S8KernelAvx2.S.o
cc: error: unrecognized command-line option ‘-mavxvnni’; did you mean
‘-mavx512vnni’?` using `gcc (GCC) 10.3.1`.

`-mavxnni` is supported since [GCC 11
Release](https://gcc.gnu.org/gcc-11/changes.html), this PR change the
version check.

cmake/onnxruntime_mlas.cmake

@@ -578,7 +578,7 @@ else()
 message(STATUS "CMAKE_CXX_COMPILER_ID: ${CMAKE_CXX_COMPILER_ID}")
 message(STATUS "CMAKE_CXX_COMPILER_VERSION: ${CMAKE_CXX_COMPILER_VERSION}")
 
-if(NOT "${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU" OR CMAKE_CXX_COMPILER_VERSION VERSION_GREATER "10")
+if(NOT "${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU" OR CMAKE_CXX_COMPILER_VERSION VERSION_GREATER "11")
           message(STATUS "Using -mavx2 -mfma -mavxvnni flags")
           set_source_files_properties(${mlas_platform_srcs_avx2} PROPERTIES COMPILE_FLAGS "-mavx2 -mfma -mavxvnni")
 else()