Typo fix

cmake/system.cmake

@@ -48,7 +48,7 @@ if (DEFINED TARGET)
   if (${TARGET} STREQUAL "COOPERLAKE" AND NOT NO_AVX512)
     if (${CMAKE_C_COMPILER_ID} STREQUAL "GNU")
       execute_process(COMMAND ${CMAKE_C_COMPILER} -dumpversion OUTPUT_VARIABLE GCC_VERSION)
-        if (${GCC_VERSION} VERSION_GREATER 10.1 OR ${GCC_VERSION} VERSION_EQUAL10.1)
+        if (${GCC_VERSION} VERSION_GREATER 10.1 OR ${GCC_VERSION} VERSION_EQUAL 10.1)
           set (KERNEL_DEFINITIONS "${KERNEL_DEFINITIONS} -march=cooperlake")
         else()
           set (KERNEL_DEFINITIONS "${KERNEL_DEFINITIONS} -march=skylake-avx512")