Prohibit FP16 FP32 values for cpp benchmark_app (#16217)

Ticket 100990

Python benchmark_app already prohibits FP16 and FP32.

samples/cpp/common/utils/src/args_helper.cpp

@@ -345,8 +345,8 @@ ov::element::Type getPrecision(std::string value,
 
 ov::element::Type getPrecision2(const std::string& value) {
     static const std::unordered_map<std::string, ov::element::Type> supported_precisions = {
-        {"FP32", ov::element::f32},
-        {"FP16", ov::element::f16},
+        {"F32", ov::element::f32},
+        {"F16", ov::element::f16},
         {"BF16", ov::element::bf16},
         {"U64", ov::element::u64},
         {"I64", ov::element::i64},