Scanf doesn't support output size modifiers.

While using the output size modifier with scanf it returned status -1 but according to POSIX:
Code to reproduction:
```
#include <stdio.h>
```

int main(void) {

float flt = 3.123412341234e+17,
      fltVal,
      fltValSup;

char buff[50];

sprintf(buff, "%f", flt);

printf("\nscanf = %d\n", sscanf(buff, "%5f %f", &fltVal, &fltValSup));
printf("\n%f %f \n", fltVal, fltValSup);

}



* Output between host-generic-pc and ia32-generic-qemu:

![Screenshot from 2023-04-05 09-08-03](https://user-images.githubusercontent.com/49757239/230006677-3df1cb10-274a-4c3c-b4e1-f08ce70e9c35.png)

phoenix-rtos / phoenix-rtos-project

Scanf doesn't support output size modifiers. #681