scanftest:need enable CONFIG_LIBC_SCANSET

[crafcat7]

Summary

When I used scanftest, I found that some of its test cases depended on the function enabled by CONFIG_LIBC_SCANSET. So I added a dependency to it to ensure the correct operation of this test case.

"",
        instead of
"   ",
        to the first argument.

Test #29 returned 0 instead of 1.
Test #29 assigned
"",
        instead of
"  q",
        to the first argument.

Test #30 returned 0 instead of 2.
Test #30 assigned
"",
        instead of
"  ",
        to the first argument.

Test #30 assigned
"",
        instead of
"Q",
        to the second argument.

Test #31 returned 0 instead of 2.
Test #31 assigned
"",
        instead of
"qwerty-",
        to the first argument.

Test #31 assigned
"",
        instead of
"QWERTY-",
        to the second argument.

Impact

Add CONFIG_LIBC_SCANSET dependency to enable the use case

Testing

Compiles fine on local code