[DOC] update coreml new opretors and flags

[wejoncy]

Description

Motivation and Context

[skottmckay]

[jcelerier]

the doc here is wrong and does not compile:

provider_options["ModelFormat"] = std::to_string("MLProgram");
provider_options["MLComputeUnits"] = std::to_string("ALL");
provider_options["RequireStaticInputShapes"] = std::to_string("0");
provider_options["EnableOnSubgraphs"] = std::to_string("0");

std::to_string is to convert a number (int, float etc.) to a string. It should be std::string or just passing the array as it will be converted automatically to std::string:

provider_options["ModelFormat"] = "MLProgram";
provider_options["MLComputeUnits"] = "ALL";
provider_options["RequireStaticInputShapes"] = "0";
provider_options["EnableOnSubgraphs"] = "0";