Intel-C: standard flags are also supported in 12.0

Modules/Compiler/Intel-C.cmake

@@ -19,7 +19,7 @@ if (NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 15.0.0)
   set(CMAKE_C11_EXTENSION_COMPILE_OPTION "${_std}=gnu11")
 endif()
 
-if (NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 12.1)
+if (NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 12.0)
   set(CMAKE_C90_STANDARD_COMPILE_OPTION "${_std}=c89")
   set(CMAKE_C90_EXTENSION_COMPILE_OPTION "${_std}=gnu89")
   set(CMAKE_C99_STANDARD_COMPILE_OPTION "${_std}=c99")